Source : Webster's Revised Unabridged Dictionary (1913)

Premier \Pre"mi*er\, a. [F. premier, fr. L. primarius of the
   first rank, principal, fr. primus the first. See {Primary},
   {Prime}, a.]
   1. First; chief; principal; as, the premier place; premier
      minister. --Camden. Swift.

   2. Most ancient; -- said of the peer bearing the oldest title
      of his degree.

Premier \Pre"mi*er\, n.
   The first minister of state; the prime minister.

Source : WordNet®

premier
     adj 1: first in rank or degree; "an architect of premier rank";
            "the prime minister" [syn: {premier(a)}, {prime(a)}]
     2: preceding all others in time; "the premiere showing" [syn: {premiere}]

premier
     n 1: the person who holds the position of head of state in
          England [syn: {Prime Minister}, {PM}]
     2: the person who is head of state (in several countries) [syn:
         {chancellor}, {prime minister}]

premier
     v 1: be performed for the first time; "We premiered the opera of
          the young composer and it was a critical success" [syn:
          {premiere}]
     2: perform a work for the first time [syn: {premiere}]