Major US airline (6)
I believe the answer is:
united
(Other definitions for united that I've seen before include "Agreed" , "Joined or combined" , "Amalgamated" , "... we stand, divided we fall" , "Leeds, Sheffield or Manchester, perhaps" .)
I believe the answer is:
united
(Other definitions for united that I've seen before include "Agreed" , "Joined or combined" , "Amalgamated" , "... we stand, divided we fall" , "Leeds, Sheffield or Manchester, perhaps" .)