/ rep; NAmE / noun ( informal )
1.
[ C ] = sales representative , representative
2.
[ C ] a person who speaks officially for a group of people, especially at work :
a union rep
3.
[ U ] ( informal ) the abbreviation for repertory
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WORD ORIGIN
senses 1 to 2 late 19th cent.: abbreviation.
sense 3 1920s: abbreviation.