| Main Entry: | |
| Part of Speech: | verb |
| Definition: | make a solemn promise |
| Synonyms: | affirm, assure, consecrate, covenant, cross one's heart, declare, dedicate, devote, give word of honor, pledge, plight, promise, swear, swear up and down, testify, undertake solemnly, vouch, warrant |
| Antonyms: | disavow |