1) Administration opener 2) French word used in English 3) Like some January balls 4) Of an opening ceremony 5) Quadrennial national rite 6) Serving to set in motion 7) Washington ceremony 1) Initiative 2) Initiatory 3) Maiden 4) Opening 
• (a.) Pertaining to, or performed or pronounced at, an inauguration; as, an inaugural address; the inaugural exercises. • (n.) An inaugural address.
[Adjective] An inaugural event is the first of many to take place.
In·au'gu·ral adjective [ Confer French inaugural .] Pertaining to, or performed or pronounced at, an inauguration; as, an inaugural address; the inaugural exercises. 
The USS Inaugural was an American Admirable Class minesweeper of 625 tons displacement launched in 1944. The USS Inaugural was powered by diesel engines providing a top speed of 14.5 knots and carried a complement of 104. She was armed with one 3 inch dual-purpose gun and four 40 mm anti-aircraft guns.
[adj] - occurring at or characteristic of a formal investiture or induction 2. [adj] - serving to set in motion
initiative adjective serving to set in motion; `the magazine`s inaugural issue`; `the initiative phase in the negotiations`; `an initiatory step toward a treaty`; `his first (or maiden) speech in Congress`; `the liner`s maiden voyage`
of or pertaining to an inauguration: Harding's inaugural address. · marking the beginning of a new venture, series, etc.: the inaugural run of the pony express.