Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “reinforcement”


noun     /ˌriː.ɪnˈfɔːs.mənt/ US  /-ˈfɔːrs-/
[U] the act of making something stronger : The harbour walls need urgent reinforcement.Becoming and making stronger reinforcements [plural] soldiers sent to join an army to make it stronger Parts of armies and groups of servicemen
(Definition of reinforcement noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of reinforcement

Definitions of “reinforcement” in other dictionaries

Translations of “reinforcement”

Word of the Day


the art and knowledge involved in preparing and eating good food

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