Denshi Jisho — Online Japanese dictionary

せん 1: war; battle;
2: match; competition
Suffix 
いくさ 1: war; battle; campaign; fight;
2: (Archaism) troops; forces
Common word, Noun 
くせん hard fight; close game
Common word, Noun, Suru verb 
ふせん 1: anti-war; war renunciation;
2: sumo bout cancelled due to absence of one of the wrestlers
Common word, Noun, No-adjective 
きせん go or shogi tournament
Noun 
ぎせん a crusade; holy war
Noun 
やせん night warfare
Noun 
やせん field
Noun, Military term 
わせん war and peace; peace
Noun 
いっせん battle; game; bout
Common word, Noun, Suru verb 
かいせん match; game
Common word, Noun 
かいせん naval battle
Common word, Noun 
かいせん outbreak of war; starting a war
Common word, Noun, Suru verb 
かっせん battle; engagement
Common word, Noun 
かんせん watching a (sports) game; spectating; observing (military operations)
Common word, Noun, Suru verb 
けっせん decisive battle; deciding match; play-off
Common word, Noun, Suru verb 
げきせん fierce (hard-fought) battle; hot contest
Common word, Noun, Suru verb, No-adjective 
こうせん war; battle; hostilities
Common word, Noun, Suru verb 
こうせん resistance
Common word, Noun, Suru verb 
こんせん free-for-all fight
Common word, Noun 
さくせん 1: tactics; strategy;
2: military or naval operations
Common word, Noun 
さんせん participation in a war
Common word, Noun, Suru verb 
しゅせん advocacy of war
Common word, Noun 
しょせん first match (in a series)
Common word, Noun 
しょせん beginning of hostilities; beginning of competition
Common word, Noun 
じっせん combat; actual fighting
Common word, Noun 
せいせん holy war; crusade
Common word, Noun 
せっせん close combat; close contest
Common word, Noun, Suru verb, No-adjective 

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