Youngster is a good, generic way to talk about a person who's younger than you are, especially a child. If you babysit a neighborhood kid, you can describe him as a youngster.

The noun youngster is a casual word meaning "child," and its synonyms include tyke and small fry. Older people sometimes use it to refer to adults who are younger than they are: "You youngsters can keep playing cards, but I'm going to bed!" Youngster has been around since the 1500's, when it replaced the earlier youngling.

Definitions of youngster

n a young person of either sex

child, fry, kid, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke
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a child: son or daughter
a robust child
a child secretly exchanged for another in infancy
child prodigy, infant prodigy, wonder child
a prodigy whose talents are recognized at an early age
foster child, foster-child, fosterling
a child who is raised by foster parents
imp, monkey, rapscallion, rascal, scalawag, scallywag, scamp
one who is playfully mischievous
a young child
a child who has lost both parents
a young child who is small for his age
poster child
a child afflicted by some disease or deformity whose picture is used on posters to raise money for charitable purposes
kindergartener, kindergartner, preschooler
a child who attends a preschool or kindergarten
a word used for misbehaving children
a child
bambino, toddler, tot, yearling
a young child
poor and often mischievous city child
street child, waif
a homeless child especially one forsaken or orphaned
foster daughter, foster-daughter
someone who is raised as a daughter although not related by birth
foster son, foster-son
someone who is raised as a son although not related by birth
poster boy
a male poster child
poster girl
a female poster child
ragamuffin, tatterdemalion
a dirty shabbily clothed urchin
guttersnipe, street urchin
a child who spends most of his time in the streets especially in slum areas
brat, holy terror, little terror, terror
a very troublesome child
Type of:
juvenile, juvenile person
a young person, not fully developed

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