Mentor and...

[SaschaT]

I'm looking for a word:

Someone, mostly higher in rank and experience, who is assisting and promoting someone else is called a mentor.

How would you call the one who is being assisted and promoted?

[Torsten]

This depends on the situation. The word could be prot?g?, candidate, assistant, student or learner.
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Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[SaschaT]

It is for a online community. Users of a higher rank are assigned to assist new users. So what term would you use?

Is there a word like "mentee"?

[Torsten]

Mentee might be a good choice. The word exists although it's rarely used. In your particular case, however, it makes sense because you are creating an online community which often has its own terminology.
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[SaschaT]

Thanks a lot, Torsten!

[Torsten]

You're welcome. Keep us posted and up to date on your project.
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary

[SaschaT]