Webster's English Dictionary Webster's English Dictionary1. sing \'sin\ \'san\ \'s*n\ \'sin-in\ \'sin-*-b*l\ vb or sang or sung; or sung or sing.ing [ME singen, fr. OE singan; akin to OHG singan to sing, Gk ]omphe- voice 1a: to produce musical tones by means of the voice 1b: to utter words in musical tones and with musical inflections and modul ations 1c: to deliver songs as a trained or professional singer 2: to make a shrill whining or whistling sound 3a: to relate or celebrate something in verse 3b: to compose poetry 4: to produce musical or harmonious sounds 5: BUZZ, RING 6: to make a cry : CALL 7: to give information or evidence 1: to utter with musical inflections; esp : to interpret in musica l tones produced by the voice 2: to relate or celebrate in verse 3: CHANT, INTONE 4: to bring or accompany to a place or state by singing {~s the child to sleep} - sing.able aj 2. sing n : a singing esp. in company