- Definitions|0
- Thesaurus|279
- Abbreviations|0
68 entries under undertake topic. ×
| swear to God(verb, expression, idiom, assert, trust) | |
| take an oath(verb, expression, idiom, agree, declare) | |
| underwrite(verb, agree, declare, commit) | |
| consecrate(verb, declare, promise, assure) | |
| dedicate(verb, declare, promise, assure) | |
| devote(verb, declare, promise, assure) | |
| give word of honor(verb, expression, idiom, declare) | |
| undertake solemnly(verb, expression, declare, promise) |
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| APA | Smart Define. (2011). swear up and down thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/swear_up_and_down/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "swear up and down thesaurus" https://smartdefine.org/swear_up_and_down/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2011, swear up and down thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/swear_up_and_down/thesaurus/synonyms>. |
| MLA | Smart Define. "swear up and down thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/swear_up_and_down/thesaurus/synonyms> |