- (v.i.) To take upon one's self or assume, any business, duty or province.
- (v.i.) To venture; to hazard.
- (v.t.) To take or have the charge of.
- (v.t.) To have knowledge of; to hear.
- (v.t.) Hence, to guarantee; to promise; to affirm.
- (v.t.) To assume, as a character.
- (v.t.) To take upon one's self; to engage in; to enter upon; to take in hand; to begin to perform; to set about; to attempt.
- (v.i.) To give a promise or guarantee; to be surety.
- (v.t.) To engage with; to attack.
- (v.t.) Specifically, to take upon one's self solemnly or expressly; to lay one's self under obligation or to enter into stipulations, to perform or to execute; to covenant; to contract.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). undertake. Retrieved September 20, 2026, from http://smartdefine.org/undertake/definitions/2076816 |
| Chicago | Webster's. 2011. "undertake" http://smartdefine.org/undertake/definitions/2076816 (accessed September 20, 2026). |
| Harvard | Webster's 2011, undertake, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/undertake/definitions/2076816>. |
| MLA | Webster's. "undertake" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/undertake/definitions/2076816> |