• 戦争せんそう — war
• 決戦けっせん — decisive battle
• 挑戦ちょうせん — challenge
• 戦士せんし — warrior
• 戦場せんじょう — battlefield
• 戦略せんりゃく — strategy
• 戦績せんせき — battle record

戦 is one of the most recognizable kanji related to combat or conflict. It appears in many compounds relating to both real wars and internal or symbolic struggles like strategy, rivalry, or determination.

It’s frequently used metaphorically in modern contexts — such as sports, business, and personal challenges.

彼かれは 最後さいごの戦たたかいに 挑いどんだ。
He took on the final battle.

人生じんせいは 戦たたかいの 連続れんぞくだ。
Life is a series of battles.

The kun-yomi たたかう is used when talking about actually fighting or struggling. On-yomi セン is used in compound words like 戦争 (war), 挑戦 (challenge), and 決戦 (decisive battle).