air traffic control in the US

noun) a permit from an authority to own or use something, do a particular thing, or carry on a trade (especially in alcoholic beverages):

adj) involving or limited to basic principles

verb) provide lodging ; fit in with the wishes or needs of:

verb) to control

adj) relating to or denoting a metropolis, often inclusive of its surrounding areas:

verb) appoint (someone) to a specified position:

verb) have a close similarity; match or agree almost exactly:

adj) (of a road or place) so crowded with traffic or people as to hinder freedom of movement:

noun) the flying or operating of aircraft:

verb) supervise (a person or work), especially in an official capacity:

verb)cover completely with a thick layer of something:

verb) be composed or made up of

noun) the height of an object or point in relation to sea level or ground level:

verb) orce (something unwelcome or unfamiliar) to be accepted or put in place: