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young (yŭng)
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adj. young·er, young·est
1. Being in an early period of life, development, or growth.
2. Newly begun or formed; not advanced: a young biotech company.
3. Relating to, typical of, or suggestive of youth or early life: He is young for his age.
4. Lacking experience; immature: a young hand at plowing.
5. Being the junior of two people having the same name.
6. Geology Being of an early stage in a geologic cycle. Used of bodies of water and land formations.
n.
1. Young persons considered as a group; youth: entertainment for the young.
2. Offspring; brood: a lioness with her young.
Idiom:
with young
Pregnant. Used of an animal.

[Middle English yong, from Old English geong; see yeu- in the Appendix of Indo-European roots.]

youngness n.

Synonyms: young, youthful, adolescent, immature, juvenile, childish, puerile, infantile
These adjectives relate to an early stage of growth or development and to its accompanying characteristics. Young is the most general, applying to various periods of life, generally before middle age, as well as to inanimate entities: a young child; a young couple; a young galaxy.
It can suggest a youthful attitude or outlook regardless of chronological age: young at heart.
Youthful suggests the positive characteristics, such as enthusiasm, freshness, or energy, that are traditionally associated with youth: approached the task with youthful ardor.
Adolescent connotes the physical and especially mental or emotional characteristics of those between childhood and maturity; it is generally not disparaging except when used of an adult: adolescent insecurity; an adolescent outburst from the trial lawyer.
Immature is more clearly judgmental, implying that someone falls short of an expected level of mental or emotional development for his or her age: an emotionally immature adult.
Juvenile suggests the immaturity usually associated with adolescents, but it can convey an attitude of tolerance as well as criticism: the juvenile pranks of the conventioneers.
Childish is similar to juvenile but with a younger frame of reference, often suggesting selfishness, stubbornness, or lack of restraint: a committee member with a childish need to have the last word.
However, it can also suggest such positive qualities of children as innocence and wholeheartedness: took childish delight in tending his garden.
Puerile and infantile are used derogatorily to suggest extreme immaturity, especially with regard to social manners: a puerile joke; an infantile boast.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Edward 1683-1765.
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English poet known for his dramatic monologue Night Thoughts (1742-1745).

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Denton True Known as "Cy." 1867-1955.
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American baseball player. A pitcher for 22 seasons, he won 511 games, including 76 shutouts and 3 no-hit games.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Brigham 1801-1877.
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American religious leader who directed the Mormon Church after the assassination (1844) of its founder, Joseph Smith. He led an exodus of the Mormons from their troubled settlement in Illinois to the site of present-day Salt Lake City, Utah, where they established a permanent home for the church (1847).
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Brigham Young

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young (yŭng), Andrew Jackson, Jr. Born 1932.
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American civil rights leader and politician. He was executive director of the Southern Christian Leadership Conference (1964-1970) and later served as US ambassador to the United Nations (1977-1979) and as mayor of Atlanta (1982-1990).

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Whitney Moore, Jr. 1921-1971.
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American civil rights leader who was executive director of the National Urban League (1961-1971).

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Thomas 1773-1829.
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British physician, physicist, and linguist who did experiments demonstrating the wave nature of light, investigated how the human eye focuses and senses color, and helped decipher the hieroglyphics on the Rosetta Stone.
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Thomas Young

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
Young, Lester Willis Known as "Pres." 1909-1959.
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American jazz musician with an improvisational, influential tenor saxophone style.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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