Synonyms of guaranteeing
- 1 Syllable
- swear, back
- 2 Syllables
- support, aver, angel, cosign, witness, bankroll, warrant, wager, protect, confirm, juice, affirm, prove, stake, attest, maintain
- 3 Syllables
- endorse, testify, grubstake, certify, evince, assure, secure, reassure, insure, mortgage, guaranty, ensure
- 4 Syllables
- evidence