(けっせい)

けっせい
noun, suru verb
formation, organization
1. formation, organization, founding
The act of bringing people together to form a group, team, party, or organization. Emphasizes the deliberate creation of a collective body for a shared purpose.
バンドを結成(けっせい)した。
We formed a band.
(あたら)しい政党(せいとう)結成(けっせい)された。
A new political party was formed.
地域(ちいき)安全(あんぜん)(まも)るために自警団(じけいだん)結成(けっせい)することになった。
It was decided to form a neighborhood watch group to protect the community's safety.

USAGE:
Primarily used as a suru verb: 結成(けっせい)する (to form, to organize). Used for deliberate, purposeful creation of groups — bands, political parties, committees, teams, alliances.

COMMON COLLOCATIONS:

  • バンドを結成(けっせい)する: to form a band
  • 政党(せいとう)結成(けっせい)する: to form a political party
  • チームを結成(けっせい)する: to form a team
  • 同盟(どうめい)結成(けっせい)する: to form an alliance
  • 委員会(いいんかい)結成(けっせい)する: to form a committee

SIMILAR WORDS:
設立(せつりつ) (establishment) is used for more formal organizations like companies and institutions. 結成(けっせい) implies people coming together voluntarily for a shared cause.