Thesaurus

Synonyms for Key include:

all important, all-important, alpha, beta, big, burning, cardinal, central, chief, consequential, Copernican, crucial, distinguished, earthshaking, eminent, epoch-making, epochal, essential, eventful, evidential, evidentiary, fundamental, grand, grave, great, grievous, heavy, historic, important, in-chief, key, large, main, meaningful, measurable, momentous, monumental, most-valuable, noteworthy, of import, of the essence, operative, outstanding, portentous, primal, primary, principal, probative, probatory, prodigious, profound, remarkable, serious, significant, strategic, valuable, weighty, world-shaking, world-shattering

key is a ADJ.

cay, Florida key, Francis Scott Key, headstone, key, key fruit, keystone, paint, samara, tonality, winder

key is a NOUN.

describ, describe, discover, distinguish, identify, key, key out, nam, name

key is a VERB.