Definition of "Premier" :
noun: the person who is head of government (in several countries)
noun: the person who holds the position of head of the government in the United Kingdom
verb: perform a work for the first time
verb: be performed for the first time
"We premiered the opera of the young composer and it was a critical success."
adjective: preceding all others in time
"The premiere showing."
adjective: first in rank or degree
"An architect of premier rank."