Declare vs. Define

Declare vs. Define — Is There a Difference?
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Difference Between Declare and Define

Declareverb

To make clear, explain, interpret.

Defineverb

To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly.

the defining power of an optical instrument

Declareverb

(intransitive) To make a declaration.

Defineverb

(obsolete) To settle, decide an argument etc.

Declareverb

(transitive) To announce one’s support, choice, opinion, etc.

He declared him innocent.

Defineverb

To express the essential nature of something.

I define myself as a techno-anarchist.
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Declareverb

For the captain of the batting side to announce the innings complete even though all batsmen have not been dismissed.

Defineverb

To state the meaning of a word, phrase, sign, or symbol.

The textbook defined speed as velocity divided by time.

Declareverb

(transitive) To announce something formally or officially.

declare bankruptcydeclare victory

Defineverb

To describe, explain, or make definite and clear.

Declareverb

For a constituency in an election to officially announce the result

Houghton and Sunderland South was the first constituency to declare in the 2015 general election.

Defineverb

To demark sharply the outlines or limits of an area or concept.

to define the legal boundaries of a property
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Declareverb

(transitive) To affirm or state something emphatically.

Defineverb

(mathematics) To establish the referent of a term or notation.

Declareverb

(transitive) To inform government customs or taxation officials of goods one is importing or of income, expenses, or other circumstances affecting one's taxes.

Definenoun

(programming) A kind of macro in source code that replaces one text string with another wherever it occurs.

Declareverb

(transitive) To make outstanding debts, e.g. taxes, payable.

Defineverb

give a definition for the meaning of a word;

Define `sadness'

Declareverb

To explicitly include (a variable) as part of a list of variables, often providing some information about the data it is expected to contain.

The counter "i" was declared as an integer.

Defineverb

determine the essential quality of

Declareverb

state emphatically and authoritatively;

He declared that he needed more money to carry out the task he was charged with

Defineverb

determine the nature of;

What defines a good wine?

Declareverb

announce publicly or officially;

The President declared war

Defineverb

delineate the form or outline of;

The tree was clearly defined by the lightThe camera could define the smallest object

Declareverb

state firmly;

He declared that he was innocent

Declareverb

declare to be;

She was declared incompetentjudge held that the defendant was innocent

Declareverb

authorize payments of;

declare dividends

Declareverb

designate (a trump suit or no-trump) with the final bid of a hand

Declareverb

make a declaration (of dutiable goods) to a customs official;

Do you have anything to declare?

Declareverb

proclaim one's support, sympathy, or opinion for or against;

His wife declared at once for moving to the West Coast