(1):
(superl.) Being in the first part, pr period, of growth; as, a young plant; a young tree.
(2):
(superl.) Having little experience; inexperienced; unpracticed; ignorant; weak.
(3):
(n.) The offspring of animals, either a single animal or offspring collectively.
(4):
(superl.) Not long born; still in the first part of life; not yet arrived at adolescence, maturity, or age; not old; juvenile; - said of animals; as, a young child; a young man; a young fawn.