To shut a building or a business for a period of time.(verb)
To heal a cut or other wound(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "close up" in a sentence
"Seen close up as the tremendous yet tranquil swell cradled Golden Grove, its waves were a luminous ultramarine shot with pure purple."
"To Fourth, her right foot forward, parallel to her left, right arm over her head, left arm dropped back into First Position, and so into Fifth, her right foot close up to her left, the toes of each foot touching the heels of the other, her arms softly overhead."
"The sextantis useless this close in, so I close up shop in the lower equipment bay, transfer to the left couch, and wheel Columbia around to face the LM."