Function: conjunction
Date: 13th century
1 : as it would be if <it was as if he had lost his last friend>
2 : as one would do if <he ran as if ghosts were chasing him>
3 : THAT <it seemed as if the day would never end>
AS IF
Meaning of AS IF in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012