How to say "league" in Japanese

• リーグCommon
  nounCovers a league as a sports competition: a group of teams that play one another over a season. This loanword is the natural choice for the sporting sense, rather than the alliance or federation words.
  今いまシーズンは我々われわれのチームがリーグで優勝ゆうしょうした。↗

  Our team has topped the league this season.
• 同盟どうめいJLPT N1approx.Common
  noun, suru verb, intransitive verbCovers 'league' in the sense of an alliance: nations, parties, or groups bound together for shared political or economic aims. It is not used for sports competitions; think 'alliance' first.
  戦争せんそうの直前ちょくぜん、日本にっぽんがフランスと同盟どうめいを結むすびました。↗

  Japan entered into an alliance with France just before the war.
• 連盟れんめいJLPT N1approx.Common
  nounCovers 'league' as a federation: an organization made up of member clubs or associations, often the governing body for a sport. When 'league' means the organization rather than the competition, this fits.
  某ぼう連盟れんめい元会長もとかいちょうが背任はいにんの容疑ようぎで逮捕たいほされました。↗

  The former president of a certain association has been arrested on suspicion of breach of trust.

Use 「リーグ」 for a league as a competition, especially in sports; 同盟 for an alliance of nations or groups united by common interests; and 連盟 for a federation or umbrella organization of clubs and associations.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• リーグleague
• 同盟どうめいalliance
• 連盟れんめいleague
• 盟めいaimag