Main Entry: clock·work

Pronunciation: \-ˌwərk\

Function: noun

Date: 1628

1 : the inner workings of something
2 : the machinery (as springs and a train of gears) that run a clock; also : a similar mechanism running a mechanical device (as a toy)
3 : the precision, regularity, or absence of variation associated with a clock or clockwork <a clockwork operation> <the planning went like clockwork>