Synonyms of confirming

1 Syllable

bless, buy, vouch, check, back, sign

2 Syllables

support, explain, witness, warrant, affirm, okay, debunk, uphold, attest, sanction, settle

3 Syllables

underpin, endorse, verifying, rubber-stamp, double-check, establish, certify, approve, justify, subscribe, verify

4 Syllables

substantiate

5 Syllables

affirmatory, confirmative, affirmative, corroborate, authenticate, circumstantiate