Real Dictionary

triumph
uncountable noun: Triumph is a feeling of great satisfaction and pride resulting from a success or victory.
variable noun: A triumph is a great success or achievement, often one that has been gained with a lot of skill or effort.
verb: If someone or something triumphs, they gain complete success, control, or victory, often after a long or difficult struggle.

triumph in American English
in ancient Rome, a procession celebrating the return of a victorious general and his army
to gain victory or success; win mastery
intransitive verb: to gain a victory; be victorious; win
noun: the act, fact, or condition of being victorious or triumphant; victory; conquest
transitive verb: to conquer; triumph over

triumph in British English
noun: the feeling of exultation and happiness derived from a victory or major achievement