- 1beseech somebody (to do something) (formal) to ask someone for something in an anxious way because you want or need it very much synonym beg, implore
- 2 Let him go, I beseech you!
NAmE//bɪˈsitʃ//Verb Forms present simple I / you / we / they beseech
he / she / it beseeches
past simple beseeched
past simple besought