fiddle

bowed stringed instrument that is the highest member of the violin family; this instrument has four strings and a hollow body and an unfretted fingerboard and is played with a bow

try to fix or mend

Can you tinker with the T.V. set--it's not working right

She always fiddles with her van on the weekend

play around with or alter or falsify, usually secretively or dishonestly

Someone tampered with the documents on my desk

The reporter fiddle with the facts

manipulate manually or in one's mind or imagination

She played nervously with her wedding ring

Don't fiddle with the screws

play on a violin

Zuckerman fiddled that song very nicely

play the violin or fiddle

commit fraud and steal from one's employer

We found out that she had been fiddling for years

avoid (one's assigned duties)

The derelict soldier shirked his duties