fight:1.The action of fighting. 2.A combat,battle.3.Strife, conflict, struggle for victory.4. Power, strength or inclination for fighting; pugnacity.5.A division of an army in battle array.——Oxford English Dictionary

fight:1.to take part in a war or battle.2. if someone fights another person, or if two people fight, they hit and kick the other person in order to hurt them.——Longman Dictionary of Contemporary English  @en