Word: upset
Part of speech: Noun
Syllables: up
set
Definition: An upper set; a subset (X,≤) of a partially ordered set with the property that, if x is in U and x≤y, then y is in U.
Morphemes:
Affix: up-
Language: en
PoS: Prefix
Meaning: Used to indicate higher position or direction, literally or figuratively.
Affix: set
Language: en
PoS: Noun
Meaning: Set theory.