See: AS IF.
{conj.} 1. As (he, she, it) would if; in the same way one would if seeing to show. * /The baby laughed as if he understood what Mother said./ * /The book looked as though it had been out in the rain./ * /The waves dashed on the rocks as if in anger./ 2. That. * /It seems as if you are the first one here./