Entry 1 sense Webster, 1913 Clavichord /klăv'-ək-ôrdˌ/ · Clav·i·chord · IPA /ˈklæv.ɪˌkɔɹd/ 01 n. A keyed stringed instrument, now superseded by the pianoforte. See Clarichord. 1. A keyed stringed instrument, now superseded by the pianoforte. See Clarichord.(Mus.) See: Clarichord