Definition
"Register" carries two distinct legal meanings that must be kept separate: one refers to a person, the other to a document.
1. As a public officer: A register (or registrar, used interchangeably in many jurisdictions) is an official authorized by law to receive, record, and preserve instruments of legal significance. The specific duties vary by office and jurisdiction—a register of deeds records conveyances and encumbrances on real property; a register of wills (or probate register) handles the probate of wills and administration of estates; a register of a court of admiralty or chancery manages official court records. The common thread is custodial authority over a designated category of public records.
2. As a public record or book: A register is an official book or compilation in which facts, transactions, instruments, or legal events are recorded as they occur, by public authority and for public purposes. Examples include registers of births, marriages, and deaths; ship registers documenting vessel ownership and nationality; land registers recording title and encumbrances; trademark registers listing protected marks; and sex offender registries maintained by state agencies. The defining feature of a legal register is that entry confers legal effect or public notice—the register is not merely a finding aid but an operative legal document.
3. As a verb: To register means to make an official entry in such a book—to record a deed, file a mark on the Principal Register, enroll as a voter, or document a vessel's nationality. The act of registration typically triggers legal consequences: constructive notice to third parties, perfection of a security interest, establishment of priority, or conferral of a right.
Common Language
Modern common usage (Wiktionary): To sign up, enroll, or record—used broadly for signing up to vote, purchasing software, expressing outward signs, or aligning mechanical components.
Historical common usage (Webster's 1913): A written account, official enumeration, or formal record; a memorial list or roll; specifically, a record of merchant vessels belonging to a port.
The common meaning of "register" as simple enrollment or sign-up understates the legal significance of the act. In law, registration is rarely neutral record-keeping—it is typically a formal legal event that creates rights, establishes priority against third parties, or satisfies a statutory condition. A person who "registers" a trademark is not merely listing it; they are acquiring a bundle of presumptive rights enforceable nationwide. The gap between common and legal meaning is especially dangerous in property and commercial law contexts.
Common Confusion
Register vs. Recorder: Many jurisdictions use "recorder" (or "county recorder") where others use "register of deeds" for the same office. Researchers reading across jurisdictions or historical periods should not assume these are different institutions—they are overwhelmingly the same function under different titles. Burrill distinguishes the New York register of deeds from Pennsylvania's probate register, illustrating that even within a single country the title attaches to different functions depending on local law.
Register vs. Registry: "Registry" typically refers to the system or the place; "register" to the book or the officer. The terms are used loosely and interchangeably in older sources and many statutes. Do not infer a meaningful legal distinction from the word choice alone without confirming the statutory context.
Principal Register vs. Supplemental Register: In trademark law specifically, these are not equivalent. Marks on the Principal Register enjoy a different and more robust set of legal presumptions than those on the Supplemental Register. The distinction is invisible in general-purpose historical dictionaries, which predate modern trademark registration systems.
Recognized Forms
/SUBTYPES
Register of Deeds / Land Register: Records conveyances, mortgages, liens, and other instruments affecting title to real property. Entry provides constructive notice to subsequent purchasers and encumbrancers.
Register of Wills / Probate Register: Officer or book handling probate of wills and grant of letters testamentary or of administration. Common in mid-Atlantic and some southern U.S. jurisdictions.
Ship's Register: Official documentation of a vessel's nationality, ownership, and tonnage, issued by customs authority. Historically essential for maritime commerce and still operative in admiralty law.
Trademark Register (Principal and Supplemental): Maintained by the USPTO; entry on the Principal Register creates nationwide constructive notice and a presumption of validity and ownership.
Voter Register / Electoral Roll: Public record of persons qualified and enrolled to vote in a jurisdiction.
Sex Offender Registry: Statutory database of persons convicted of qualifying offenses, with varying public-access and duration rules by state.
National Register of Historic Places: Federal listing administered by the National Park Service; designation affects regulatory treatment and eligibility for preservation incentives.
Why It Matters in Research
The dual meaning—officer and document—creates real ambiguity in historical sources. A case or statute referring to "the register" may mean a person or a book; context and jurisdiction are required to resolve it. Researchers reading 18th- and 19th-century equity and admiralty materials will encounter "the register" as a court officer (analogous to a clerk or master), a usage that has largely disappeared from American practice but persists in historical English materials.
Registration systems have multiplied dramatically since the core historical dictionaries were written. Bouvier and Burrill address registers of deeds and probate; neither anticipates the modern trademark registration system, UCC Article 9 filing systems (which function as registers of security interests), sex offender registries, or the National Register of Historic Places. Researchers using historical dictionaries to interpret modern registration statutes risk importing concepts that simply do not map onto contemporary frameworks.
Constructive notice is the central legal mechanism animating most registration systems—entry in the register charges the world with knowledge of the registered fact or instrument. But the scope and conditions of constructive notice vary by register type and by jurisdiction. Recording a deed in a race-notice state does not have the same effect as recording it in a pure-notice state; trademark registration provides nationwide constructive notice while state trademark registration does not. These distinctions require moving from the dictionary entry to the operative statute.
For property researchers: the shift from grantor-grantee index systems to parcel-based (Torrens) title registration systems represents a fundamental change in what a "land register" means and what legal effect entry has. Most U.S. jurisdictions use recording systems, not true Torrens registration, but a handful of states maintain both. The historical dictionaries do not draw this distinction clearly.
Historical Dictionary Support
Black's (1st ed.), Bouvier, and Burrill converge on the same two-part definition: the officer and the official book. Burrill provides the most jurisdictionally specific treatment, noting the New York register of deeds and the Pennsylvania probate register as distinct offices—a useful reminder that function does not follow title uniformly.
Bouvier adds a point of comparative interest: in England, parish records maintained by the established church carried the characteristics of public records, while in the United States, the absence of a state church created a different evidentiary and legal status for vital records. This distinction mattered in 19th-century evidence law when attempting to use church registers as proof of birth, marriage, or death.
The Rapalje & Lawrence and Anderson entries retrieved by the corpus appear to reflect indexing proximity rather than substantive entries for "register" as such; researchers should treat those sources as potentially incomplete on this term and rely primarily on Black's, Bouvier, and Burrill.
What the historical dictionaries collectively miss: the verb form of "register" as a legal act with downstream consequences is underdeveloped. The books treat registration as passive record-keeping rather than a performative legal act. Modern registration systems—particularly in intellectual property and secured transactions—have inverted this: the act of registration is constitutive, not merely commemorative.
Jurisdictional Note
Terminology for the real property recording officer varies significantly: "Register of Deeds" is standard in many midwestern and mid-Atlantic states; "County Recorder" or "Recorder of Deeds" predominates in others. In England and Wales, the Land Registry operates a true title registration system under the Land Registration Act 2002, which differs fundamentally from American recording systems. Federal registers (USPTO, National Register of Historic Places) operate under distinct statutory regimes that supersede or layer onto state systems.
Encyclopedia Cross-Reference
Trademark Registration -- USPTO Procedures, Intent-to-Use, and the Principal Register (The Law Mind Intellectual Property Encyclopedia) [ip_68]
Historic Preservation -- National Register, Local Landmark Designation, Regulation (The Law Mind Property Law Encyclopedia) [property_108]