To listen closely or pay careful attention to a sound or someone speaking; an archaic or poetic word meaning to hear.
From Old English 'heorcnian' meaning to listen. The word is archaic but still used poetically and in the phrase 'hark back' meaning to recall.
'Hark the Herald Angels Sing' taught millions the word through Christmas carols—it's one of the few archaic words that stays alive because of music and tradition!
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