I would like to know if the title of 'Deputy' is used to describe an assistant, or someone acting as substitute in director's absence?

E. Haas


Here are a few general comments.

Director sounds important

Deputy Director sounds quite important

assistant sounds unimportant

Acting Director does the job of Director temporarily, eg if the Director dies or is away for 6 months

If the Director just tells you "I'm going to play golf this afternoon, so take care of the office", there is no special real name for what you do.