American English

Definition of strengthen verb from the Oxford Advanced American Dictionary

 

strengthen

 verb
verb
NAmE//ˈstrɛŋkθən//
 
, NAmE//ˈstrɛŋθən//
 
[intransitive, transitive]Verb Forms present simple I / you / we / they strengthen
 
he / she / it strengthens
 
past simple strengthened
 
-ing form strengthening
 
 
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to become stronger; to make someone or something stronger Her position in the party has strengthened in recent weeks. Yesterday the yen strengthened against the dollar. The wind had strengthened overnight. The fall in unemployment is a sign of a strengthening economy. strengthen somebody/something Repairs are necessary to strengthen the bridge. The exercises are designed to strengthen your stomach muscles. The move is clearly intended to strengthen the President's position. The new manager has strengthened the team by bringing in several younger players. Their attitude only strengthened his resolve to fight on. The new evidence will strengthen their case. The experience of bereavement can strengthen family ties. opposite weakenWord Familystrong adjectivestrongly adverbstrength nounstrengthen verb
See the Oxford Advanced Learner's Dictionary entry: strengthen