verb [transitive, intransitive]Verb Forms present simple I / you / we / they tense he / she / it tenses past simple tensed -ing form tensing
jump to other results if you tense your muscles, or you or your muscles tense, they become tight and stiff, especially because you are not relaxed tense something/yourself (up) She tensed her muscles in anticipation of the blow. He tensed himself, listening to see if anyone had followed him. tense (up) His muscles tensed as he got ready to run. She tensed, hearing the strange noise again.
Idioms to become or feel nervous or worried so that you cannot relax See tense in the Oxford Advanced Learner's DictionaryCheck pronunciation:
tense