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Phonetics
/ˈpɛti/
noun
(usually in the plural) A little schoolboy, either in grade or size.
A class or school for young schoolboys.
An outhouse: an outbuilding used as a lavatory.
adjective
Little, small, secondary in rank or importance.
Insignificant, trifling, or inconsiderable.
Example: a petty faultNarrow-minded, small-minded.
Begrudging in nature, especially over insignificant matters.
Example: That corporation is only slightly pettier than they are greedy, and they are overdue to reap the consequences.