The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.

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1. to state or set forth the meaning of (a word, etc.). 2. to explain or identify the nature or essential qualities of; describe. 3. to specify: to define responsibilities. 4. to determine or fix the …

If you define something, you show, describe, or state clearly what it is and what its limits are, or what it is like. We were unable to define what exactly was wrong with him. [VERB wh] He was …

to determine or fix the boundaries or extent of: to define property with stakes. to make clear the outline or form of: The roof was boldly defined against the sky.

DEFINE meaning: 1 : to explain the meaning of (a word, phrase, etc.); 2 : to show or describe (someone or something) clearly and completely

To determine or state the extent and nature of; describe exactly. Define your duties.