What does "in due course" mean? Is it an idiom?

[Justmeagain]

Business Idiom in English, Intermediate level

ESL/EFL Test #130 "Way of saying goodbye", question 3

I'll be seeing you then in due ..........

(a) path
(b) direction
(c) course
(d) route

Business Idiom in English, Intermediate level

ESL/EFL Test #130 "Way of saying goodbye", answer 3

I'll be seeing you then in due course.

Correct answer: (c) course

Your answer was: incorrect
I'll be seeing you then in due path.
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Could you tell me what does 'due course' mean?

Thank you.
Justmeagain

[Conchita]

"Could you tell me what 'due course' means?"

The idiom 'in due course' means 'eventually' or 'at some time in the future'.

[Alan]

I knew a university don who would always say: See you when due course finally arrives - instead of saying good bye.

A
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English as a Second Language
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[Luby]

Good Evening!
Is these sentences correct: 'will be chatting with you in due course'
'will talk to you in due course'?

[Alan]

Hi Luby,

Both are fine and no doubt we will be hearing you in due course.

Alan
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English as a Foreign Language
You can read my EFL story Progressive Forms