Words / B1

LYTB-ulb/ˈlaɪt bʌlb/

A light bulb (id: light-bulb) is the glass part of an electric light that produces light. A lamp is the whole fitting or a portable light; a tube is often fluorescent. Labs: a blown bulb still goes in the accident book if glass is on the bench.

Meaning

The glass part of an electric light that produces light.

Examples

• “A blown light bulb in the lab still goes in the accident book if glass is on the bench.”
• “LED light bulbs in halls are the landlord’s fittings; do not swap them for a colour-change strip.”

Good to know

a light bulb (also bulb). Contrast: a lamp / a tube. Labs / halls. Countable bulbs. Mix-up: light is uncountable as illumination.

Near in meaning

bulb

New