Leaving the lights on is a waste of energy.
Leaving the lights on is a waste of energy.
English
on
ɒn, ɑn, ɔn, ɔʊn
Meaning: so as to cover or be fitted; to an operating state
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Example sentences
He put his coat on and went outside.
He put his coat on and went outside.
The street lights turn on at dusk.
The street lights turn on at dusk.
You have got your T-shirt on inside out.
You have got your T-shirt on inside out.
Usage Notes
As an adverb, it can mean wearing something or that something is functioning/operating.
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