Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “hammer”


verb [I or T, usually + adv/prep] (USE TOOL)    /ˈhæm.ər/ US  //
to hit something with a hammer: Can you hold this nail in position while I hammer it into the door ? I could hear you hammering upstairs . My car's got a dent , and I was hoping they'd be able to hammer it out (= remove it by hammering).Hitting and beatingPunishing by causing pain
(Definition of hammer verb (USE TOOL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of hammer

Definitions of “hammer” in other dictionaries

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More