to take care of and support up to maturity: to rear a child.
to breed and raise (livestock).
to raise by building; erect.
to raise to an upright position: to rear a ladder.
to lift or hold up; elevate; raise.
—verb (used without object)
to rise on the hind legs, as a horse or other animal.
(of a person) to start up in angry excitement, hot resentment, or the like (usually followed by up ).
to rise high or tower aloft: The skyscraper rears high over the neighboring buildings.
—Idioms
rear its (ugly) head. head (def 85).
Origin: before 900; Middle English reren, Old English rǣran to raise; cognate with Gothic -raisjan, Old Norse reisa