lightning noun Stress: first syllable 🤍 Save Syllables: light-ning (2) English Definition A sudden spark of electricity in the atmosphere. Example Sentence Lightning flashed across the sky. US IPA /ˈlaɪtnɪŋ/ 🔊 Listen US UK IPA /ˈlaɪtnɪŋ/ 🔊 Listen UK Synonyms thunderbolt flash bolt discharge Antonyms darkness calm Share this Word Facebook WhatsApp X Telegram Copy Link