Definition
To secure, in legal usage, means to make certain the payment of a debt or performance of an obligation by giving a creditor, counterparty, or beneficiary a recognized legal right or interest that can be enforced if the primary obligation fails. The term operates in several overlapping contexts:
1. Debt and collateral. A debtor secures a creditor by giving a lien, mortgage, pledge, deed of trust, or other security interest in property. The secured party acquires a contingent right to the collateral that activates upon default. This is the dominant modern commercial usage.
2. Constitutional and statutory guarantee. To secure a right, in constitutional or legislative drafting, means to establish, protect, or give legal effect to that right — not merely to acknowledge a pre-existing one. Anderson's notes this distinction explicitly in the intellectual property context: when Congress secures to authors and inventors exclusive rights, it creates those rights rather than saving ones already in existence.
3. Physical custody and restraint. To secure a person or object means to take physical control, confine, or place beyond the risk of escape or loss. Used in criminal procedure (securing a scene, securing a suspect) and in insurance and property contexts.
4. General assurance. Broadly, to secure means to make safe, to protect against loss or harm, or to obtain with certainty. This general sense underlies all the specific uses above.
Common Language
Modern common usage (Wiktionary): To make safe; to protect from danger; to fix in place or render incapable of escape; to obtain or gain possession of something.
Historical common usage (Webster's 1913): Free from fear, care, or anxiety; confident; overconfident or incautious; certain or sure of something. Used both positively (safe, confident) and negatively (recklessly unguarded).
The common meaning of secure emphasizes a state — being safe or free from risk. The legal meaning is predominantly active and transactional: one party does something to create security for another. The Webster's 1913 negative sense (incautious, overconfident) has no legal counterpart. Researchers reading historical instruments who encounter "secure" as an adjective should note that earlier usage may describe a mental state of confidence rather than any collateral arrangement.
Common Confusion
Secure (verb) vs. security (noun): These terms are often used interchangeably in historical sources, but in modern commercial law "security" encompasses both the act of securing and the instrument or interest created by that act. Confusing them obscures whether a document is describing the transaction (the giving of collateral) or the result (the lien or pledge itself).
Secure as constitutional protection vs. secure as commercial collateral: The constitutional sense — Congress shall secure to authors and inventors — means to create or guarantee a right by law. The commercial sense means to backstop an obligation with property. Both appear in legal instruments across centuries; context is essential to avoid misreading historical documents.
Core Elements
When a party secures a debt or obligation, the transaction typically requires:
1. An underlying obligation — a debt, duty, or performance owed by one party to another.
2. A grant or conveyance — the debtor transfers a property interest (lien, pledge, mortgage, deed of trust) to or for the benefit of the secured party.
3. Contingency — the security interest becomes enforceable upon a defined default or failure of the primary obligation.
4. Priority — the secured party's right is generally enforceable against third parties and ranks ahead of unsecured claimants in insolvency, subject to proper perfection under applicable law.
Why It Matters in Research
The term "secure" is one of the most contextually unstable words in the legal corpus. Researchers face three distinct traps.
First, historical instruments use "secure" freely across debt, constitutional, and physical custody contexts without always signaling which sense applies. A colonial deed "securing" a boundary means something entirely different from a promissory note "securing" a debt, and both differ from a constitutional provision "securing" a liberty. Cross-referencing the document type and surrounding language is essential before concluding what legal effect the word carries.
Second, in constitutional and statutory drafting, the distinction Anderson's draws — creating rights versus saving pre-existing ones — has doctrinal consequences that courts have disputed at length. Researchers working in intellectual property, civil rights, or structural constitutional history should treat "secure" in foundational texts as a term of art with contested meaning, not a synonym for "protect."
Third, in the commercial law context, what it means to "secure" a creditor has been substantially formalized over time. Pre-UCC sources use varied language (pledge, lien, hypothecation, collateral security) that does not map cleanly onto modern Article 9 categories. Translating historical secured transactions language into contemporary doctrine requires care; the historical dictionaries reflect a pre-Article 9 landscape.
The connection between this entry and the broader securities law corpus (federal securities regulation) is largely terminological rather than substantive: "securities" in the sense of investment instruments shares etymological roots with "secure" but has developed into an almost entirely separate regulatory domain.
Historical Dictionary Support
Black's Law Dictionary (both the first and second editions) defines secure primarily as a transactional verb: to give security, assure payment, or guarantee performance. The creditor-debtor illustration — giving a lien, mortgage, or pledge — is consistent across both editions and reflects the dominant commercial usage of the late nineteenth and early twentieth centuries. The second edition adds case references (Ex parte Reynolds; Foot v. Webb) that confirm the definition had judicial grounding, though the cases themselves are routine rather than landmark.
Anderson's Dictionary of Law adds the constitutionally significant gloss: in the intellectual property clause, "secure" creates rights rather than recognizing them. This is a more nuanced entry than Black's and is useful for researchers working with founding-era documents. Anderson's also notes the sense of making safe or certain — closer to the common language meaning — as part of a multi-part definition, suggesting that in the late nineteenth century the line between common and legal usage was not yet as sharp as it later became.
None of the historical sources anticipates the UCC framework or the modern formality of security interest perfection. Researchers should treat the dictionary definitions as reflective of common-law secured transactions doctrine, not Article 9 doctrine.
Jurisdictional Note
In the United States, the commercial sense of "secure" and the creation of security interests is largely governed by Article 9 of the Uniform Commercial Code, adopted in substantially uniform form across all states, though with local variations in filing requirements and priority rules. Real property security (mortgages, deeds of trust) remains primarily state law and varies considerably. The constitutional sense of "secure" is federal and uniform.
Encyclopedia Cross-Reference
Secured Transactions — Security Interest (Definition and Creation) (The Law Mind Contracts & Commercial Law Encyclopedia)
Federal Securities (The Law Mind Business Organizations & Corporate Law Encyclopedia)