strange (adj.)

late 13c., straunge, "from elsewhere, foreign, unknown, unfamiliar, not belonging to the place where found," from Old French estrange "foreign, alien, unusual, unfamiliar, curious; distant; inhospitable; estranged, separated" (Anglo-French estraunge, strange, straunge; Modern French étrange), from Latin extraneus "foreign, external, from without" (source also of Italian strano "strange, foreign," Spanish extraño), from extra "outside of" (see extra-). In early use also strounge. The surname Lestrange is attested from late 12c. Sense of "queer, surprising" is attested from c. 1300, also "aloof, reserved, distant; estranged." In nuclear physics, from 1956.

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Definitions of strange from WordNet

strange (adj.)
being definitely out of the ordinary and unexpected; slightly odd or even a bit weird;
a strange fantastical mind
what a strange sense of humor she has
a strange exaltation that was indefinable
Synonyms: unusual
strange (adj.)
not known before;
saw many strange faces in the crowd
used many strange words
Synonyms: unknown
strange (adj.)
relating to or originating in or characteristic of another place or part of the world;
Synonyms: foreign