tune up

Found in Anh - Anh (Wordnet)

Definition Verb (transitive) : To adjust the pitch or intonation of a musical instrument so that it produces the correct notes. To make small adjustments to a machine or engine so that it operates at optimal performance. Usage and Examples Verb (adjusting a musical instrument) : The violinist will tune up her violin before the concert. It's important to tune up the piano regularly to maintain i...