WordWeb Online

1. Enter upon an activity or enterprise
   - set about, attempt
    
2. Accept as a challenge
   - tackle, take on
    
3. Promise to do or accomplish
   - guarantee
    
4. Enter into a contractual arrangement
   - contract
    
5. Accept as a charge
   - take in charge

Derived forms: undertaken, undertook, undertakes, undertaking

See also: undertaking

Type of: accept, assure, confront, consent, face, face up, go for, initiate, pioneer, promise