- for an intervening time; briefly
- At the same time; short-term.
in mean-time. An officer advertising interim is certainly one appointed to fill a temporary vacancy, or to discharge the tasks of the workplace throughout the lack or temporary incapacity of their regular incumbent.
In spite of his already onerous duties, Dallas, with characteristic energy, served also as secretary of war ad interim from March to August 1815, and in this capacity successfully reorganized the army on a peace footing.