stranger

A stranger is someone you don't know or who doesn't belong in a specific place.

Parents tell their kids, "Don't talk to strangers." That's because strangers are people they don't know, who could be dangerous. Just like strange things are odd or weird, a stranger is unknown and therefore potentially scary. Also, anyone out of place can be considered a stranger. A fireman in a police station is a stranger, and a mascot in a scientific lab is a stranger. Either type of stranger is likely to make someone say, "Who's that?"

Definitions of stranger
  1. noun
    an individual that one is not acquainted with
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    Antonyms:
    acquaintance, friend
    a person with whom you are acquainted
    type of:
    individual, mortal, person, somebody, someone, soul
    a human being
  2. noun
    anyone who does not belong in the environment in which they are found
    synonyms: alien, unknown
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    Antonyms:
    acquaintance, friend
    a person with whom you are acquainted
    types:
    foreigner, outsider
    someone who is excluded from or is not a member of a group
    transalpine
    one living on or coming from the other side of the Alps from Italy
    type of:
    interloper, intruder, trespasser
    someone who intrudes on the privacy or property of another without permission
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