Noun

• S: (n) tinker, tinkerer (a person who enjoys fixing and experimenting with machines and their parts)
• S: (n) tinker (formerly a person (traditionally a Gypsy) who traveled from place to place mending pots and kettles and other metal utensils as a way to earn a living)
• S: (n) chub mackerel, tinker, Scomber japonicus (small mackerel found nearly worldwide)

Verb

• S: (v) putter, mess around, potter, tinker, monkey, monkey around, muck about, muck around (do random, unplanned work or activities or spend time idly) "The old lady is usually mucking about in her little house"
• S: (v) tinker (work as a tinker or tinkerer)
• S: (v) tinker, fiddle (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"