1. on fire; burning
2. filled with intense emotion or excitement

1. in a state of burning

Examples

• The old barn was afire within minutes.
• Her eyes were afire with determination.
• The forest went afire during the drought.
• His imagination was afire with new ideas.
• The building caught afire from the lightning strike.
• She was afire with enthusiasm for the project.
• The dry grass quickly went afire.