Victory, conquest, triumph can mean the result achieved by one who gains the mastery in a contest or struggle.
Victory and conquest in their basic use carry the same implications and suggestions as the corresponding agent nouns (see VICTOR ).
In their common extended use, victory is likely to suggest a gaining of superiority or success, often in intellectual or spiritual fields while conquest is more likely to imply a bringing of something under one’s control, especially so that it may be put to use.
Triumph may apply either to a brilliant or decisive victory or an overwhelming conquest and suggest the acclaim and personal satisfaction accruing to the winner.
In its extended use triumph tends to stress decisiveness and brilliance of the result or to express the pleasure of the successful person.