Open English Wordnet
Nouns
(n)tunethe property of producing accurately a note of a given pitch“he cannot sing in tune”,
“the clarinet was out of tune” (n)tunethe adjustment of a radio receiver or other circuit to a required frequency Verbs
(v)tune, tune upadjust for (better) functioning“tune the engine” (v)tune, tune upadjust the pitches of (musical instruments)“My piano needs to be tuned”