KEY

9 definitions found across Law Mind sources

KEYAuthored
The Law Mind • 1198 words
Definition
KEY carries two distinct legal meanings, both historically recognized and both still occasionally relevant in legal research: 1. A wharf or landing place. A structure along a waterway used for the loading and unloading of cargo from vessels. In this sense, "key" is an older anglicized spelling of quay, and the two terms are interchangeable in historical maritime and commercial sources. 2. A physical instrument for operating a lock. In property law, keys attached to or associated with real property have been treated as part of the realty itself. Keys to a house descend to the heir with the inheritance and are classified as real property, not personal property — yet they are not fixtures in the technical sense, meaning that the taking of a key was historically not actionable as larceny of a fixture. The symbolic or actual delivery of a key to a warehouse, dwelling, or other locked space has long served as a recognized method of delivering constructive possession of the goods or property contained within. In the phrase "cone et keye," appearing in Bracton and cited in early common law sources, the term was applied to women of a certain age to denote their legal capacity to manage household affairs — the custody of keys being an emblem of the housewife's domestic authority and legal competency. ---
Common Language
Modern common usage (Wiktionary): Indispensable, supremely important; important, salient. In everyday speech, "key" functions primarily as an adjective meaning essential or central. Historical common usage (Webster's 1913): An instrument by means of which the bolt of a lock is shot or drawn; a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place. The ordinary modern meaning of "key" as an adjective (key witness, key terms, key provisions) has no legal technical content — it is informal shorthand for "important" and carries no doctrinal weight. When researchers encounter "key" in historical legal sources, the operative meaning is always the noun: the physical object used to operate a lock, or, less commonly, a wharf. The adjectival use that dominates modern plain-language legal drafting is simply borrowed from general English. ---
Common Confusion
"Key" and "quay" appear interchangeably in historical maritime and commercial sources. Researchers working with older English statutes, port records, or admiralty documents should recognize that "key" in those contexts almost always refers to a wharf, not a locking instrument. The spelling "quay" became the dominant form by the nineteenth century, but older sources may use either. ---
Why It Matters in Research
The primary research significance of "key" as a legal term lies in two areas: property classification and constructive delivery. Property classification: The rule that keys descend with the inheritance as real property — but are not fixtures — reflects the subtle gradations of property law that historical courts took seriously. A researcher tracing larceny cases, inheritance disputes, or fixture questions from the eighteenth or nineteenth century may encounter this distinction directly. The classification matters because it determined whether a key was included in a conveyance, a mortgage, or a bequest of real property, and whether its wrongful taking was a crime against real or personal property. Constructive delivery: Delivery of a key to a warehouse, vault, or other locked space was a well-established method of effecting constructive delivery of goods stored inside. In sales, pledge, and commercial law disputes from the nineteenth century and earlier, courts analyzed whether key delivery was sufficient to pass title or create a possessory lien. Researchers working with early UCC predecessor cases or pre-Code commercial disputes will encounter this doctrine. Cone and key: The phrase "cone et keye" is a term of art from early common law — not merely a descriptive phrase — and researchers who encounter it in Bracton-era materials or secondary sources discussing early legal capacity of married women should cross-reference the dedicated entry at CONE AND KEY. The phrase marked a threshold of domestic legal authority, and its appearance in historical sources signals a discussion of women's legal status, not merely household management. The wharf meaning is largely of historical interest but remains relevant in admiralty history, port records, and early English commercial statutes. ---
Historical Dictionary Support
The historical dictionaries are consistent on both primary meanings. Black's (both editions) and Burrill give the Bracton reference for the "cone et keye" phrase, linking the term to early legal capacity doctrine. Bouvier adds the most substantive property law content: the rule that keys are real property descending with the inheritance, the carve-out that they are not fixtures for purposes of larceny, and the significance of key delivery in commercial transactions. Burrill supplies the social context — that custody of keys was a recognized prerogative of the housewife, lending the phrase doctrinal weight beyond metaphor. Anderson's entry for KEY is a cross-reference stub only, directing readers elsewhere, which is consistent with the term's status as a supporting concept rather than a standalone doctrine. The historical dictionaries do not address the adjectival use of "key" that now pervades legal drafting ("key terms," "key provisions," "key representations"). That usage is a twentieth-century borrowing from general English and has no historical legal dictionary support, correctly so. ---
Jurisdictional Note
The property law treatment of keys — as real property descending with the inheritance but not fixtures for larceny purposes — reflects English common law doctrine that American courts generally adopted. Specific applications varied by state, particularly as American larceny statutes were codified and modernized. Researchers should not assume the historical English rule applies unchanged in any given American jurisdiction after codification. ---
Encyclopedia Cross-Reference
The term "key" as a standalone legal concept does not correspond to a single Law Mind Encyclopedia entry. The word appears in encyclopedia entry titles as a descriptive adjective only: - IP Licensing — Types, Key Terms, and Drafting Considerations (Law Mind Intellectual Property Encyclopedia) — relevant when researching what terms are treated as material in licensing agreements - UCC Article 2A — Leases of Goods: Overview and Key Provisions (Law Mind Contracts & Commercial Law Encyclopedia) — relevant for constructive delivery and possession concepts in goods transactions - AIA Standard Form Contracts — A101/A201 Framework, Roles, and Key Provisions (Law Mind Real Estate Transactions & Construction Encyclopedia) — relevant for fixture and real property classification questions in construction contexts ---
Related Terms
CONE AND KEY — the Bracton-era phrase incorporating this term; essential companion entry QUAY — the dominant modern spelling of the wharf meaning FIXTURE — the property classification from which keys are excludeddespite descending with the realty CONSTRUCTIVE DELIVERY — the doctrine under which key delivery effected transfer of possession of stored goods LARCENY — historical cases distinguishing keys from fixtures turned on this offense DELIVERY — general delivery doctrine in property and commercial law POSSESSION — underlying concept in key-delivery cases REAL PROPERTY — the classification into which keys were placed for inheritance purposes PERSONAL PROPERTY — the classification keys escaped under the historical rule
KEYmain
Black's Law Dictionary • 1891
pose of being called to the bar. Mozley & Whitley. Avoiding a
KEYmain
Black's Law Dictionary • 1891
A wharf for the lading and unlad- ing of merchandise from vessels. More com- monly spelled "quay.” L An instrument for fastening and opening a lock. This appears as an English word as early as the time of Bracton, in the phrase "cone et keye," be- ing applied to women at a certain age, to denote the capacity of having charge of household affairs. Bract. fol. 86b. See CONE AND KEY.
KEYmain
Black's Law Dictionary (2nd Ed.) • 1910
A wharf for the lading and unlading of merchandise from vessels. More commonly spelled “quay.” An instrument for fastening and opening a lock. . This appears as an English word as early as the time of Bracton, in the phrase “cone et keye,” being applied to women at a certain age, to denote the capacity of having charge of household affairs. Bract. fol. 860. See CONE AND IKEy.
KEYn.
Websters Unabridged Dictionary (1913) • 1913
An instrument by means of which the bolt of a lock is shot or drawn; usually, a removable metal instrument fitted to the mechanism of a particular lock and operated by turning in its place. An instrument which is turned like a key in fastening or adjusting any mechanism; as, a watch key; a bed key, etc. That part of an instrument or machine which serves as the means of operating it; as, a telegraph key; the keys of a pianoforte, or of a typewriter. A position or condition which affords entrance, control, pr possession, etc.; as, the key of a line of defense; the key of a country; the key of a political situation. Hence, that which serves to unlock, open, discover, or solve something unknown or difficult; as, the key to a riddle; the key to a problem. Those who are accustomed to reason have got the true key of books. Locke. Who keeps the keys of all the creeds. Tennyson. That part of a mechanism which serves to lock up, make fast, or adjust to position. A piece of wood used as a wedge. The last board of a floor when laid down. A keystone. That part of the plastering which is forced through between the laths and holds the rest in place. A wedge to unite two or more pieces, or adjust their relative position; a cotter; a forelock. See Illusts. of Cotter, and Gib. A bar, pin or wedge, to secure a crank, pulley, coupling, etc., upon a shaft, and prevent relative turning; sometimes holding by friction alone, but more frequently by its resistance to shearing, being usually embedded partly in the shaft and partly in the crank, pulley, etc. An indehiscent, one-seeded fruit furnished with a wing, as the fruit of the ash and maple; a samara; -- called also key fruit. A family of tones whose regular members are called diatonic tones, and named key tone (or tonic) or one (or eight), mediant or three, dominant or five, subdominant or four, submediant or six, supertonic or two, and subtonic or seven. Chromatic tones are temporary members of a key, under such names as " sharp four," "flat seven," etc. Scales and tunes of every variety are made from the tones of a key. The fundamental tone of a movement to which its modulations are referred, and with which it generally begins and ends; keynote. Both warbling of one song, both in one key. Shak. Fig: The general pitch or tone of a sentence or utterance. You fall at once into a lower key. Cowper. Key bed. Same as Key seat. -- Key bolt, a bolt which has a mortise near the end, and is secured by a cotter or wedge instead of a nut. Key bugle. See Kent bugle. -- Key of a position or country. (Mil.) See Key, 4. -- Key seat (Mach.), a bed or groove to receive a key which prevents one part from turning on the other. -- Key way, a channel for a key, in the hole of a piece which is keyed to a shaft; an internal key seat; -- called also key seat. -- Key wrench (Mach.), an adjustable wrench in which the movable jaw is made fast by a key. -- Power of the keys (Eccl.), the authority claimed by the ministry in some Christian churches to administer the discipline of the church, and to grant or withhold its privileges; -- so called from the declaration of Christ, "I will give unto thee the keys of the kingdom of heaven." Matt. xvi. 19.
KEYv.
Websters Unabridged Dictionary (1913) • 1913
To fasten or secure firmly; to fasten or tighten with keys or wedges. Francis. To key up. (a) (Arch.) To raise (the whole ring of an arch) off its centering, by driving in the keystone forcibly. (b) (Mus.) To raise the pitch of. (c) Hence, fig., to produce nervous tension in.
keyadj
Wiktionary (English) • 2026
Wiktionary contributorsCC BY-SA 4.0 • via Kaikki
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Indispensable, supremely important. | Important, salient.
keynoun
Wiktionary (English) • 2026
Wiktionary contributorsCC BY-SA 4.0 • via Kaikki
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One of a string of small islands.
keynoun
Wiktionary (English) • 2026
Wiktionary contributorsCC BY-SA 4.0 • via Kaikki
Extracted and formatted for display by Law Mind. Source link opens the current Wiktionary page and its contributor history; it is not a frozen copy of this extract.
An object designed to open and close a lock. | An object designed to fit between two other objects (such as a shaft and a wheel) in a mechanism and maintain their relative orientation. | A crucial step or requirement. | A small guide explaining symbols or terminology, especially the legend on a map or chart. | A guide to the correct answers of a worksheet or test. | One of several small, usually square buttons on a typewriter or computer keyboard, mostly corresponding to text characters. | In musical instruments, one of the valve levers used to select notes, such as a lever opening a hole on a woodwind. | In instruments with a keyboard such as an organ or piano, one of the levers, or especially the exposed front end of it, which are depressed to cause a particular sound or note to be produced. | A scale or group of pitches constituting the basis of a musical composition. | A scale or group of pitches constituting the basis of a musical composition. | The lowest note of a scale; keynote. | A scale or group of pitches constituting the basis of a musical composition. | In musical theory, the total melodic and harmonic relations, which exist between the tones of an ideal scale, major or minor; tonality. | A scale or group of pitches constituting the basis of a musical composition. | In musical theory and notation, the tonality centering in a given tone, or the several tones taken collectively, of a given scale, major or minor. | A scale or group of pitches constituting the basis of a musical composition. | In musical notation, a sign at the head of a staff indicating the musical key. | The general pitch or tone of a sentence or utterance. | A modification of an advertisement so as to target a particular group or demographic. | An indehiscent, one-seeded fruit furnished with a wing, such as the fruit of the ash and maple; a samara. | A manual electrical switching device primarily used for the transmission of Morse code. | A piece of information (e.g., a password or passphrase) used to encode or decode a message or messages. | A password restricting access to an IRC channel. | In a relational database, a field used as an index into another table (not necessarily unique). | A value that uniquely identifies an entry in a container. | Any of various tools comparable to a wrench (spanner) or driver, or, in some cases, also called a wrench or driver. | A series of logically organized groups of discriminating information which aims to allow the user to correctly identify a taxon. | A piece of wood used as a wedge. | The last board of a floor when laid down. | A keystone. | That part of the plastering which is forced through between the laths and holds the rest in place. | A wooden wedge, driven sideways between a bullhead rail and a cast-iron chair, to keep the rail securely in position. | The degree of roughness, or retention ability of a surface to have applied a liquid such as paint, or glue. | The thirty-third card of the Lenormand deck. | The black ink layer, especially in relation to the three color layers of cyan, magenta, and yellow. See also CMYK. | A color to be masked or made transparent. | The free-throw lane together with the circle surrounding the free-throw line, the free-throw lane having formerly been narrower, giving the area the shape of a skeleton key hole. | A key position player (a tall forward or defender).

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