n. device used to open locks; something which allows entry; something which explains or assists in solving a problem; means to acquire or reach something; legend, list which provides decoding information; button on a keyboard; tone, note, pitch (Music); cay, Florida key, reef located off the southern coast of Florida
KEY
Meaning of KEY in English
Explanatory English dictionary bed edition. Толковый словарь английского языка Редакция bed. 2012