Entry 2 senses · 2 variants Webster, 1913 Agone · A·gone · IPA a. & adv. n. 01 a. & adv. Ago. 1. Ago.[Archaic & Poet.] “Three days agone I fell sick.” — 1 Sam. xxx. 13. 02 n. Agonic line. 1. Agonic line.