Origin: Germanic Old English suffix
Fight has 11 different meanings across 2 categories:
a hostile meeting of opposing military forces in the course of a war
"Grant won a decisive victory in the battle of Chickamauga"
"he lost his romantic ideas about war when he got into a real engagement"
An occasion of fighting.
"The police had to break up a violent fight that started outside the club last night."
In plain English: A fight is an argument or physical struggle between two people who are angry with each other.
"The boxing match was a tough fight that went on for three rounds."
Usage: Use "fight" as a noun to refer to a specific instance of physical combat or a verbal argument between two parties. It describes the event itself rather than the act of struggling, which is better expressed with the verb form.
fight against or resist strongly
"The senator said he would oppose the bill"
"Don't fight it!"
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for
"The liberal party pushed for reforms"
"She is crusading for women's rights"
"The Dean is pushing for his favorite candidate"
To contend in physical conflict, either singly or in war, battle etc.
"The two boxers stepped into the ring to fight for the championship belt."
In plain English: To fight means to try to hurt someone else or win an argument by using force or strong words.
"The two brothers fought over who would get the last slice of pizza."
Usage: Use "fight" to describe engaging in actual physical combat, whether between individuals in an argument or armies in a war. Avoid using it metaphorically for non-violent struggles, such as trying hard to succeed at work, unless you specifically mean battling through resistance with forceful action.
The word "fight" comes from Old English feohtan, originally meaning to combat or strive. It ultimately traces back to a Proto-Indo-European root related to combing and shearing, though its specific sense of struggle developed in Germanic languages before entering Middle English.