1. a small fiery particle thrown off from a fire, alight in ashes, or produced by striking together two hard surfaces such as stone or metal
2. a flash of light produced by an electrical discharge
3. a small amount of a feeling or quality that triggers something greater

1. to produce sparks of fire or electricity
2. to trigger or initiate something

Examples

• A spark from the campfire landed on my jacket.
• The electrical spark lit up the dark room briefly.
• There was a spark of hope in her eyes.
• The old engine began to spark and sputter.
• His speech sparked a heated debate among the students.
• The faulty wire sparked dangerously.
• A spark of creativity inspired her new painting.