define

(verb) determine the essential quality of. Synonyms: specify, delineate, delimit, delimitate.

(verb) give a definition for the meaning of a word. Examples: "Define `sadness'."

(verb) determine the nature of. Examples: "What defines a good wine?."

(verb) show the form or outline of. Synonyms: delineate. Examples: "The tree was clearly defined by the light." "The camera could define the smallest object."

(verb) decide upon or fix definitely. Synonyms: specify, set, determine, fix, limit. Examples: "Fix the variables." "Specify the parameters."