To Fight
To Battle, To Combat
intransitive verb, godan verb
This is the verb version of the vocab word 戦い, which I'm hoping you learned earlier. The verb version of course means to fight or to battle.
The reading comes from 戦い a word you've hopefully seen by now. Associate these words together in your mind and you'll be able to read them so long as you know the other one.
力で戦う
to fight with force
戦場で戦う
to fight on the battlefield
世界で戦う
to compete on a global scale
病気と戦う
to fight an illness
世界と戦う
to fight against the world, to compete with the world
モンスターと戦う
to fight a monster
代わりに戦う
to fight on behalf of someone else
いっしょに戦う
to fight together
必死に戦う
to fight desperately
一人で戦うつもりなの？
Are you planning to fight alone?
第二次世界大戦で日本とアメリカは戦いました。
Japan and America fought in WWII.
私の兄は病気と戦っています。
My brother is fighting against an illness.