Real Dictionary

fight in British English 3
verb: to oppose or struggle against (an enemy) in battle

ruck
countable noun: A ruck is a fold or crease in cloth or clothing.
countable noun: A ruck is a situation where a group of people are fighting or struggling.
countable noun: In the sport of rugby, a ruck is a situation where a group of players struggle for possession of the ball.

ruck in American English 1
a heap or stack, as of fuel
noun: a large number or quantity; mass

ruck in American English 2
crease, fold, wrinkle, or pucker
to make or become creased or wrinkled
noun: a fold or wrinkle; crease

ruck in British English 1
noun: a large number or quantity; mass, esp of ordinary or undistinguished people or things
verb: to try to win the ball by advancing over it when it is on the ground, driving opponents backwards in the process

ruck in British English 2
noun: a wrinkle, crease, or fold
verb: to become or make wrinkled, creased, or puckered

ruck in British English 3
noun: a fight

ruck in British English 4
noun: a rucksack

rucksack in British English 4
noun: a large bag, usually having two straps and a supporting frame, carried on the back and often used by climbers, campers, etc