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Pronunciation varies by accent · adjective
Between departments; to do with the connection of departments..
I sent the memo to the accounting department via interdepartmental mail.
The memo discussed a new interdepartmental project that would require resources from nearly every group.
Use interdepartmental when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Interdepartmental means Between departments; to do with the connection of departments..
The closest synonym depends on the sentence and intended sense.
Possible antonyms include intradepartmental.
I sent the memo to the accounting department via interdepartmental mail.
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