Definition
The process of ascertaining the intended meaning of language used in a legal instrument — a statute, contract, will, deed, or other written document. Interpretation asks what the author meant to convey; it operates on the text as written and seeks to recover the sense the drafter designed those words to express.
Two distinct but overlapping operations are often grouped under this heading:
1. Textual interpretation: Reading the words of an instrument to determine their sense in context — the meaning a reasonable reader, familiar with the subject matter and circumstances, would take from them.
2. Legal interpretation: A broader inquiry, sometimes conducted by courts and administrative bodies, into the legal significance of an instrument or provision — including the consequences and effects that flow from it as a matter of law.
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Common Language
Modern common usage (Wiktionary): An act of interpreting or explaining something unclear; a translation; a version; the sense given by an interpreter; an artist's way of expressing thought.
Historical common usage (Webster's 1913): The act of interpreting; explanation of what is obscure; translation; version; construction; the sense given by an interpreter.
The gap between common and legal meaning is specific rather than dramatic. In ordinary speech, interpretation implies subjectivity — a personal reading, an artistic choice. In law, interpretation is a disciplined process constrained by canons, rules of evidence, and the hierarchy of interpretive sources. The legal process is not open-ended; it is bounded by the instrument and its context. A legal interpretation carries authority that an everyday "interpretation" does not.
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Common Confusion
INTERPRETATION vs. CONSTRUCTION: These terms are used interchangeably in many historical sources and in a significant portion of modern practice, but the classical distinction is meaningful and recurs in authoritative texts. Interpretation, in the strict sense, deals with the sense and meaning of the words themselves — what the language says. Construction goes further: it determines the legal effect and consequences of the instrument — what the law makes of it. As Black's 1st edition states, "construction is a term of wider scope than interpretation." In practice, courts frequently collapse the distinction, and many modern treatises treat them as synonyms. Researchers should not assume that a historical source using "interpretation" is excluding questions of legal effect, or that one using "construction" is limiting itself to statutory text.
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Recognized Forms
/SUBTYPES
Strict (literal) interpretation: Adheres closely to the plain meaning of the text; resists importing extrinsic context.
Liberal (equitable) interpretation: Reads text in light of evident purpose; extends language to cover situations the words might not literally reach.
Authentic interpretation: An interpretation issued by the original author of the instrument or, in some legal systems, by the legislature that enacted a statute. Carries binding or near-binding authority.
Judicial interpretation: Interpretation by a court, which is authoritative for the parties and may bind future courts under principles of precedent.
Grammatical interpretation: Interpretation based on the ordinary rules of language and syntax.
Logical interpretation: Departs from literal language when necessary to give effect to the apparent intent of the parties or drafter.
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Why It Matters in Research
Terminology instability is the central research trap. Across the Law Mind corpus, "interpretation" and "construction" are used both as synonyms and as technical opposites depending on the era, jurisdiction, and author. A treatise from 1850 using "interpretation" may be addressing questions modern courts would call "construction," and vice versa. When working with historical sources, check how the specific author defines their terms before relying on the label.
The interpretive canon landscape shifts considerably over time. Canons that appear in 19th-century treatises — such as the rule that penal statutes are to be strictly construed, or that ambiguous contract language is read against the drafter — may have been modified, abandoned, or reframed in modern doctrine. Historical dictionary support on the canons should be cross-checked against current secondary sources.
In contract research, interpretation is the entry point to an entire network of construction rules. The Law Mind Contracts Encyclopedia entries on general principles of construction and on time-of-the-essence clauses illustrate how courts move from interpretive inquiry (what did the parties mean?) to legal consequence (what effect does that meaning produce?). Insurance policy interpretation is a particularly rich area because courts have layered policy-specific canons — including the rule of reasonable expectations and the rule against insurer — on top of general contract interpretation principles.
For statutory sources, interpretation questions are closely tied to the theory of legislative intent and to the weight given to legislative history. These approaches varied sharply across the 19th and 20th centuries and continue to divide courts today. Historical sources may assume an intentionalist baseline that later textualist doctrine explicitly rejects.
Bouvier's definition, drawn from Lieber, introduces the concept that "a person adopting or sanctioning" signs "uses" them as much as their immediate author — an early formulation of what modern contract law calls the objective theory of meaning. This theoretical point has significant doctrinal implications and is worth tracking through the corpus when researching how courts treat course of dealing, prior drafts, and extrinsic evidence.
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Historical Dictionary Support
The historical dictionaries converge on the core definition: interpretation is the ascertainment of the true meaning of signs or words. All major sources — Bouvier, Burrill, Black's in both editions, Anderson, and Rapalje & Lawrence — draw on or cite Francis Lieber's Hermeneutics (1839), which supplied the era's dominant theoretical framework. This shared intellectual ancestry means the 19th-century sources largely agree on fundamentals while differing on taxonomy.
The interpretation/construction distinction is handled inconsistently. Black's 1st edition draws the distinction explicitly and credits it with precision. Burrill acknowledges that the terms are "sometimes held to be the same with construction, and used indifferently." Anderson's flatly states it is "used interchangeably." Researchers should treat the distinction as a tool of analysis available in the corpus, not as a reliable guide to how any particular source uses the vocabulary.
Black's 2nd edition's definition — "the art or process of discovering and expounding the intended signification of the language used" — is notably richer than the 1st edition's more terse formulation. The 2nd edition anchors interpretation explicitly in authorial intent, reflecting the intentionalism that dominated late 19th-century American interpretive theory.
What the historical dictionaries largely omit: the textualist critique of intent-based interpretation that would later reshape statutory construction; the administrative law dimension of interpretation (agency interpretations, deference doctrines); and the distinction between interpretation as a private ordering tool (contracts, wills) versus a public law tool (statutes, constitutional provisions). These gaps are significant for any researcher working in post-New Deal or late 20th-century materials.
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Jurisdictional Note
The canons of interpretation for contracts versus statutes have developed along separate tracks in American law, and the separation has widened over time. Federal statutory interpretation is now heavily influenced by textualist methodology; state courts vary considerably. In civil law jurisdictions and in international commercial arbitration, interpretive frameworks differ structurally from common law approaches, which matters when the corpus includes comparative or transnational materials.
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Encyclopedia Cross-Reference
Interpretation — General Principles and Rules of Construction (The Law Mind Contracts & Commercial Law Encyclopedia)
Interpretation — Time of the Essence Clauses (The Law Mind Contracts & Commercial Law Encyclopedia)
Insurance Contracts — Interpretation and Construction of Insurance Policies (The Law Mind Contracts & Commercial Law Encyclopedia)
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