/ ˈkɒliːg; NAmE ˈkɑː-/ noun
a person that you work with, especially in a profession or a business :
a colleague of mine from the office
We were friends and colleagues for more than 20 years.
the Prime Minister and his Cabinet colleagues
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WORD ORIGIN
early 16th cent.: from French collègue , from Latin collega partner in office, from col- together with + legare depute.