(しゅりょく)

しゅりょく
noun
main force, mainstay
1. main force, mainstay, key player
The primary strength or most important element of a group, team, army, or business. Used to identify what or who carries the greatest weight or responsibility.
(かれ)はチームの主力(しゅりょく)だ。
He is the key player of the team.
この会社(かいしゃ)主力(しゅりょく)商品(しょうひん)はスマートフォンだ。
This company's main product is smartphones.
主力(しゅりょく)選手(せんしゅ)怪我(けが)出場(しゅつじょう)できず、チームは苦戦(くせん)した。
The star player couldn't compete due to injury, and the team struggled.

USAGE:
主力(しゅりょく) is used across many domains: sports (key players), business (main products/markets), and military (main forces). It functions both as a standalone noun and as a modifier.

COMMON COLLOCATIONS:

  • 主力(しゅりょく)選手(せんしゅ): star player, key player
  • 主力(しゅりょく)商品(しょうひん): flagship product
  • 主力(しゅりょく)事業(じぎょう): core business
  • 主力(しゅりょく)部隊(ぶたい): main force (military)