One that competes with another, as in sports or business; a rival.
A contest, or match
One that contests or disputes something, such as an election or a will.
The definition of an opponent is someone who you compete against, who has interests opposing yours, or is a person who is against something.
One that equals or almost equals another in a particular respect:
A state of open, often prolonged fighting; a battle or war.
The space shuttle Challenger, named after the HMS Challenger (1858), destroyed on January 28, 1986 with loss of its seven-member crew.
Find another word for contender. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for contender, like: competitor, competition, contestant, corrival, opponent, rival, conflict and challenger.