ask (for something); "He applied for a leave of absence"; "She applied for college"; "apply for a job"
refer (a word or name) to a person or thing; "He applied this racial slur to me!"
apply oneself to; "Please apply yourself to your homework"
be pertinent or relevant or applicable; "The same laws apply to you!"; "This theory holds for all irrational numbers"; "The same rules go for everyone"
have recourse to or make an appeal or request for help or information to; "She called on her Representative to help her"; "She turned to her relatives for help"