superl. of young.

a person who is the least old of a group, as the youngest member of a family

Their youngest is still in high school.

being in the first or early stage of life or growth; youthful; not old

a young woman.

having the appearance, freshness, vigor, or other qualities of youth.

of or pertaining to youth

in one's young days.

inexperienced or immature.

not far advanced in years in comparison with another or others.

junior, as applied to the younger of two persons having the same name

the young Mr. Smith.

being in an early stage generally, as of existence, progress, operation, development, or maturity; new; early

a young wine; It is a young company, not yet firmly established.

representing or advocating recent or progressive tendencies, policies, or the like.

those who have youth; young persons collectively

the educated young of today; a game for young and old.

young offspring

a mother hen protecting her young.

with young

(of an animal) pregnant.