To accept as true, particularly without absolute certainty (i.e., as opposed to knowing).
To have religious faith; to believe in a greater truth.
To accept that someone is telling the truth.
To opine, think, reckon.
To assume something to be true without verification or proof.
To give little attention to or to underestimate the value of; to fail to appreciate, especially something one has grown heavily accustomed to; not to value or care for appropriately, out of the assumption that the person or thing not valued cannot be lost.