affirm as in establish or strengthen as with new evidence or facts

• "his story confirmed my doubts"
• "The evidence supports the defendant"

Synonyms

• confirmestablish or strengthen as with new evidence or facts; strengthen or make more firm; make more firm; support a person for a position; administer the rite of confirmation to
• corroborateestablish or strengthen as with new evidence or facts; give evidence for ; support with evidence or authority or make more certain or confirm
• sustainlengthen or extend in duration or space; undergo (as of injuries and illnesses); provide with nourishment; supply with necessities and support; be the physical support of; admit as valid; establish or strengthen as with new evidence or facts
• substantiateestablish or strengthen as with new evidence or facts; represent in bodily form; make real or concrete; solidify, firm, or strengthen
• supportthe activity of providing for or maintaining by supplying with money or necessities; aiding the cause or policy or interests of; something providing immaterial assistance to a person or cause or interest; a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission; documentary validation; the financial means whereby one lives; supporting structure that holds up or provides a foundation; the act of bearing the weight of or strengthening; a musical part (vocal or instrumental) that supports or provides background for other musical parts ; any device that bears the weight of another thing; financial resources provided to make some project possible; give moral or psychological support, aid, or courage to; support materially or financially; be behind; be the physical support of; establish or strengthen as with new evidence or facts; adopt as a belief; support with evidence or authority or make more certain or confirm; argue or speak in defense of; play a subordinate role to (another performer); be a regular customer or client of; put up with something or somebody unpleasant

affirm as in to declare or affirm solemnly and formally as true

• "Before God I swear I am innocent"

Synonyms

• verifyconfirm the truth of; check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard; attach or append a legal verification to (a pleading or petition) ; to declare or affirm solemnly and formally as true
• assertstate categorically ; to declare or affirm solemnly and formally as true; insist on having one's opinions and rights recognized; postulate positively and assertively
• avowto declare or affirm solemnly and formally as true; admit openly and bluntly
• averreport or maintain; to declare or affirm solemnly and formally as true
• swanstately heavy-bodied aquatic bird with very long neck and usually white plumage as adult ; to declare or affirm solemnly and formally as true; move about aimlessly or without any destination, often in search of food or employment; sweep majestically
• swearutter obscenities or profanities; to declare or affirm solemnly and formally as true; promise solemnly; make a deposition; have faith or confidence in

affirm as in say yes to