- 1clinch something to succeed in achieving or winning something to clinch an argument/a deal/a victory They clinched a place in the semi-finals.
- 2clinch something to provide the answer to something; to settle something that was not certain “I'll pay your airfare.” “Okay,that clinches it—I'll come with you.” a clinching argument
NAmE//klɪntʃ//Verb Forms present simple I / you / we / they clinch
he / she / it clinches
past simple clinched
-ing form clinching