definition of
require

[1] #1 require v. [necessitate, ask, postulate, need, take, involve, call for, demand] require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert";. wn

[2] #2 require v. [ask, expect] consider obligatory; request and expect; "We require our secretary to be on time"; "Aren't we asking too much of these children?"; "I expect my students to arrive in time for their lessons". wn

[3] #3 require v. [command] make someone do something. wn

[4] #4 require v. [want, need] have need of; "This piano wants the attention of a competent tuner". wn