lightbulb
/ˈlaɪt ˌbʌlb/
noun
- A glass device that produces light when electricity passes through it, used in lamps and fixtures.
- She screwed the lightbulb into the lamp and turned on the switch.
- LED lightbulbs use less energy and last longer than traditional ones.
- I need to replace the lightbulb in the kitchen ceiling fixture.
- A sudden idea or moment of inspiration.
- When she saw the diagram, a lightbulb went off in her head.
- The inventor's lightbulb idea came to him while he was taking a shower.
- He had a lightbulb moment and solved the math problem instantly.
Synonyms