37 synonyms for define such as outline, clarify, bound, delineate, and outline. Define is a verb, and its antonyms are confuse and obscure.
Clarify, describe, elucidate, explain, explicate, expound, express in words, give the meaning of, interpret, put into words, spell out, and state precisely.
Bound, circumscribe, decide, delimit, delineate, demarcate, designate, determine, establish, fix, mark off, mark out, set out, set the boundaries/limits of, settle, specify, and stipulate.
Delineate, make clear the outline of, outline, outline, pencil, silhouette, and trace.