challenger

باللغة العربية: مُتَحَدٍّ، مُنافِس

1. One who challenges.
2. One who confronts or opposes; a confronter, an opposer. · challengers of traditional attitudes
3. One who plays against the current champion of a contest or game in hopes of winning and becoming the new champion. · The champion hopes to defeat his new challenger in the game to remain undefeated.· One child stood as king of the hill, and tried to withstand the pushes and shoves of his challengers.
4. Often in the form Challenger: a match, tournament, or tour of the second-highest tier organized by the Association of Tennis Professionals.

الجمع challengers