Depending on the context can be understood as close, narrow, very close, limiter or finalizer, which closes something. Although it was taken from Old French, the origin is Latin : clausus , a , um means "closed, impenetrable, very narrow".
It's the wrong way to say closet. It is a word of English origin meaning wardrobe, showcase or wardrobe. In many parts of Latin America and especially in Colombia and Panama are commonly used clóser and closet, with the same meaning.
I don't think it's used in Spanish. See English/closer .