war, battle, match
戦 centers on armed conflict or competitive struggle: war, battle, or a match where sides clash.
war
war; battle; campaign; fight
battle; war; fight; conflict
to make war (on); to wage war (against); to go to war (with); to fight (with); to do battle (against)
tactics; strategy
challenge; defiance; dare; attempt; try
battle; fight; combat
strategy; tactics
participation in a war; going to war
soldier; combatant; warrior
fighting (against); taking on (an opponent); facing; confronting; competing (with); battle; fight; contest; match
postwar period; period after Second World War
great war; great battle
tank (military vehicle)
battlefield; battleground
country in civil war; country disarrayed by war
pre-war days; before the war
watching a (sports) game; spectating; observing (military operations)
tactics
war potential; military strength; fighting power
battleship
battle; fight; fighting; engagement; contest
event with ... rounds, innings, legs, etc.
defeat; lost battle; losing a war
戦 is the modern simplified form of 戰. The older form combines 單 (a hunting weapon or net) with 戈 (halberd), together expressing the idea of warfare or fighting. The modern left side 単 is a simplification of 單.
The left side 単 suggests a simple or single thing, and the right side 戈 is a halberd. Imagine a lone warrior with a halberd stepping into battle: 戦 is war or a match.
For セン, picture a battle scene where a centurion (セン) leads the charge with a halberd: cent -> セン, and the warrior fights in the war.