reinforcement
noun /ˌriːɪnˈfɔːsmənt/
  /ˌriːɪnˈfɔːrsmənt/
 - reinforcements[plural] extra soldiers or police officers who are sent to a place because more are needed- to send in reinforcements
 Extra ExamplesTopics War and conflictc2, Law and justicec2- Reinforcements arrived too late.
- The crowd was very large and police reinforcements were called in.
- We need urgent reinforcements.
 Oxford Collocations Dictionaryadjective- police
- troop
 - call for
- call in
- request
- …
 - arrive
 
- [uncountable, singular] the act of making something stronger, especially a feeling or an idea- the reinforcement of existing prejudices by the media
 Extra Examples- The children respond well to praise and positive reinforcement.
- The instructor provides reinforcement to elicit the desired response.
- The minister's statement provides reinforcement for the view that tax cuts are likely in the budget.
- The windows have steel reinforcement.
 Oxford Collocations Dictionaryadjective- powerful
- negative
- positive
- …
 - provide
- receive
- have
- …