Japanese

Noun

せいやく ‎(romaji seiyaku)

1. 誓約: an earnest and solemn promise, made to oneself, to another, or to a deity; vow, oath or pledge
2. 制約: that which prevents freedom; a restriction
3. 製薬: manufacturing of medicines
4. 成約: reaching an agreement

Verb

せいやくする ‎(romaji seiyaku suru)

1. 誓約: make a vow
2. 制約: limit, restrict
3. 成約: reach an agreement