give your word
US /ɡɪv jʊər wɜrd/
UK /ɡɪv jʊər wɜrd/

1.
약속하다, 맹세하다
to make a promise or a solemn assurance
:
•
I give you my word that I will finish the project on time.
약속할게, 프로젝트를 제시간에 끝낼 거야.
•
He gave his word that he would never betray her.
그는 그녀를 절대 배신하지 않겠다고 약속했다.