noun
lightbulb
LYT-buhlb
Lightbulb (noun) means a glass bulb that produces light when electricity passes through it. Example: “The lightbulb in the hallway burned out.”
noun
1
A glass bulb that produces light when electricity passes through it.
"The lightbulb in the hallway burned out."
"LED lightbulbs use far less energy than old incandescent ones."
How to use lightbulb
Learner’s notesIn plain EnglishThe glass part of a lamp that glows to give off light.
Common pairings
change a lightbulb
lightbulb moment
energy-saving lightbulb
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Word forms
- Plural
- lightbulbs
Fill the gap
Can you complete this real example?
The _____ in the hallway burned out.
Etymology
A straightforward compound of light + bulb, describing the bulb-shaped glass housing that produces light.
Synonyms
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Frequently asked questions
What does “lightbulb” mean?
The word “lightbulb” means a glass bulb that produces light when electricity passes through it. In plain terms, the glass part of a lamp that glows to give off light.
How do you pronounce “lightbulb”?
“Lightbulb” is pronounced LYT-buhlb (/ˈlaɪtˌbʌlb/ in IPA).
How do you use “lightbulb” in a sentence?
Here is “lightbulb” used in a sentence: “The lightbulb in the hallway burned out.”
What part of speech is “lightbulb”?
“Lightbulb” is a noun.
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