au noun Stress: first syllable 🤍 Save Syllables: au (1) English Definition The chemical symbol for gold. Example Sentence Au is the chemical symbol for gold in the periodic table. US IPA /eɪ ˈjuː/ 🔊 Listen US UK IPA /eɪ ˈjuː/ 🔊 Listen UK Synonyms gold aurum Share this Word Facebook WhatsApp X Telegram Copy Link