light up
verb- To illuminate, to bring light to something, to brighten.
- To start to emit light; to become activated as a light source.
- To show an increase in activity or a brightening of mood. · He saw Mary and his face lit up.
- To ignite.
- To light a cigarette, pipe, etc. · Smoking in this building is not allowed, so I always step outside to light up.
- To light a cigarette, pipe, etc. for (someone).
- To make happy.
- To introduce (someone to something), to make someone aware of or interested in something; turn on.
From the library
Suddenly there was the momentary gleam of a light up in the direction of the ventilator, which vanished immediately, but was succeeded by a strong smell of burning oil and heated metal.
At night, the trees light up the dark sky.
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