testify verb Stress: first syllable 🤍 Save Syllables: tes-ti-fy (3) English Definition Give evidence as a witness in a law court Example Sentence He was asked to testify in court. US IPA /ˈtestɪfaɪ/ 🔊 Listen US UK IPA /ˈtestɪfaɪ/ 🔊 Listen UK Synonyms attest witness declare swear Antonyms deny disprove refute Share this Word Facebook WhatsApp X Telegram Copy Link