Strum

v. t. & i.

1.

To play on an instrument of music, or as on an instrument, in an unskillful or noisy way; to thrum; as, to strum a piano. [imp. & p. p. Strummed ; p. pr. & vb. n. Strumming.]

Noun	1.	strum - sound of strumming; "the strum of a guitar"
Verb	1.	strum - sound the strings of (a string instrument); "strum a guitar" Synonyms: thrum

sound, thrum