# Quantify vs. Define — What's the Difference?

## Compare with Definitions

#### Quantify

To determine or express the quantity of.
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#### Define

State or describe exactly the nature, scope, or meaning of
The contract will seek to define the client's obligations
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#### Quantify

(Logic) To limit the variables of (a proposition) by prefixing an operator such as all or some.
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#### Define

Mark out the boundary or limits of
The river defines the park's boundary
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#### Quantify

To assign a quantity to.
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#### Define

To state the precise meaning of (a word or sense of a word, for example).
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#### Quantify

To determine the value of (a variable or expression).
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#### Define

To describe the nature or basic qualities of; explain
Define the properties of a new drug.
A study that defines people according to their median incomes.
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#### Quantify

(logic) To relate a statement (called a predicate) to a given set using a quantifier—either for all (denoted ∀) or there exists (denoted ∃).
The statement $\left(\forall x \in \mathbb\left\{R\right\}\right) \, 2x = x + x$ quantifies over the real numbers.
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#### Define

To make clear the outline or form of; delineate
Gentle hills that were defined against the sky.
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#### Quantify

To modify or qualify with respect to quantity; to determine, fix or express the quantity of; to rate.
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#### Define

To specify distinctly
Define the weapons to be used in limited warfare.
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#### Quantify

To make explicit the quantity of; as, to quantify a variable.
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#### Define

To give form or meaning to
"For him, a life is defined by action" (Jay Parini).
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#### Quantify

Use as a quantifier
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#### Define

To make or write a definition.
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#### Quantify

Express as a number or measure or quantity;
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#### Define

To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly.
The defining power of an optical instrument
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#### Define

(obsolete) To settle, decide an argument etc.
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#### Define

To express the essential nature of something.
I define myself as a techno-anarchist.
Your past mistakes do not define who you are.
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#### Define

To state the meaning of a word, phrase, sign, or symbol.
The textbook defined speed as velocity divided by time.
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#### Define

To describe, explain, or make definite and clear; used to request the listener or other person to elaborate or explain more clearly his or her intended meaning of a word or expression.
Person 1: Is she good at math?
Person 2: Define "good." If you mean if she is faster than the average middle schooler at multiplication, then yes. If you mean if she is able to do multivariable calculus, then no.
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#### Define

To demark sharply the outlines or limits of an area or concept.
To define the legal boundaries of a property
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#### Define

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

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

To fix the bounds of; to bring to a termination; to end.
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#### Define

To determine or clearly exhibit the boundaries of; to mark the limits of; as, to define the extent of a kingdom or country.
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#### Define

To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly; as, the defining power of an optical instrument.
Rings . . . very distinct and well defined.
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#### Define

To determine the precise signification of; to fix the meaning of; to describe accurately; to explain; to expound or interpret; as, to define a word, a phrase, or a scientific term.
They define virtue to be life ordered according to nature.
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#### Define

To determine; to decide.
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#### Define

Give a definition for the meaning of a word;
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#### Define

Determine the essential quality of
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#### Define

Determine the nature of;
What defines a good wine?
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#### Define

Delineate the form or outline of;
The tree was clearly defined by the light
The camera could define the smallest object
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