- 1reinforce something to make a feeling, an idea, etc. stronger The experience reinforced my sense of loss. Such jokes tend to reinforce racial stereotypes. The climate of political confusion has only reinforced the country's economic decline. Success in the talks will reinforce his reputation as an international statesman.
- 2reinforce something to make a structure or material stronger, especially by adding another material to it All buildings are now reinforced to withstand earthquakes. reinforced steel
- 3reinforce something to send more people or equipment in order to make an army, etc. stronger The U.N. has undertaken to reinforce its military presence along the borders.
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NAmE//ˌriɪnˈfɔrs//Verb Forms present simple I / you / we / they reinforce
he / she / it reinforces
past simple reinforced
-ing form reinforcing