Closer would be used to note a change in proximity, ie something is getting nearer. It could also (more rarely) be used as a name for someone, or something that closes things e.g. a sale, or a door.
He moved to be closer to the warmth of the fire.
The kitten nestled closer as it began to purr.
The heat intensified as we got closer to the power source
That storm's getting closer.
She could sense the feeling of impending doom settling down upon the courtyard as the army rode closer.
A sentence closer is at the end of the sentence and normally, before the closer, there's a comma.-.-
She has a retentive memory, able to remember even the smallest details of past events.
use it by saying- how can you use the word ebullient in a sentence?
Example sentence - The painting appeared dimensional until you looked closer.
We are ready for inspection. This item bears closer inspection.
The storm brewed as the hurricane grew closer.
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