What is "take for granted"

vb. 1 (context transitive English) To assume something to be true without verification or proof. 2 (context transitive idiomatic especially of a person English) To give little attention to or to underestimate the value of, to fail to appreciate.

v. take to be the case or to be true; accept without verification or proof; "I assume his train was late" [syn: assume, presume]