Is 鬭 commonly used in modern Chinese?

No, 鬭 is the traditional form and has been largely replaced by the simplified character 斗 in most contexts.

What are the main meanings of 鬭?

The character primarily means to fight, struggle, contend, or compete in various contexts from physical combat to intellectual competition.

Generally not recommended as it carries strong combative connotations. The simplified form 斗 is also rarely used in modern names for similar reasons.

鬭Tone 4

dòu ｜ 24 strokes ｜ radical:

To fight;

to struggle;

to contend;

to compete;

to quarrel.

To fightto struggleto contend

To fightTo quarrelTo compete in witCockfightingTo fight courageouslyTo struggle against nature

Originally depicted two men fighting with weapons, emphasizing physical combat.
Used in various competitive contexts from military conflicts to games and intellectual contests.
The character is now mostly replaced by 斗 in simplified Chinese, but retains its classical form in traditional contexts.