summon to enter; "The nurse called in the next patient"
summon to a particular activity or employment; "Experts were called in"
pay a brief visit; "The mayor likes to call on some of the prominent citizens"
take a player out of a game in order to exchange for another player
make a phone call; "call in to a radio station"; "call in sick"
demand payment of (a loan); "Call a loan"
cause to be returned; "recall the defective auto tires"; "The manufacturer tried to call back the spoilt yoghurt"