clockwork

noun

clock·​work ˈkläk-ˌwərk 

1

: the inner workings of something

2

: the machinery (such as springs and a train of gears) that run a clock

also : a similar mechanism running a mechanical device (such as a toy)

3

: the precision, regularity, or absence of variation associated with a clock or clockwork

a clockwork operation

—used in the phrase like clockwork to describe something that happens or works in a regular and exact way

This type of star has a wonderful property: Its brightness waxes and wanes like clockwork…

—Ron Cowen

If everything went like clockwork, it would have taken a year to get items in stores.

—Brooks Barnes

Examples of clockwork in a Sentence

the clockwork inside a mechanical toy soldier

Recent Examples on the Web

Obviously there is a load of new cosmetics to go along with the event, including five new personas that turn heroes into clockwork robots. — Mike Stubbs, Forbes.com, 25 June 2026

The world’s largest watch fair, which runs like clockwork in Geneva every April, will return next year with an even more impressive lineup that includes three new luxury watchmakers. — Rachel Cormack, Robb Report, 23 June 2026

As soon as daylight saving time hits, like clockwork, my once borderline obsessive need to have perfectly pristine floors, windows, walls, and closets is thrown to the wayside. — Patricia Shannon, Southern Living, 21 June 2026

England always has flashy players heading into World Cup play, but the results haven't been there, and they've often been sent home in brutal fashion, offering a great parallel to the Mets' clockwork-like midsummer swoons and late-season meltdowns. — Austin Perry Outkick, FOXNews.com, 18 June 2026

Word History

First Known Use

1628, in the meaning defined at sense 1

Rhymes for clockwork

• artwork
• beadwork
• berserk
• breastwork
• brickwork
• brushwork
• casework
• classwork
• coursework
• ductwork
• earthwork
• falsework

Kids Definition

clockwork

noun

clock·​work ˈkläk-ˌwərk 

: machinery (as in a mechanical toy) containing a set of small cogwheels