中堅

1. Origins, structure, and basic meaning

• Structure: The spelling is 中堅, read ちゅうけん, and it combines 中, meaning middle, with 堅, suggesting a solid core.
• Basic usage: 中堅 describes an experienced mid-career person or core member positioned between newcomers and the most senior members of a group or field.

2. Common pitfalls and similar expressions

• A core contributor rather than merely middle seniority
  • Both examples use the form 中堅. Beyond being at a middle career stage, the person acts as a dependable member who trains newcomers or supports younger players.
• An employee training new staff and a player supporting juniors
  • 中堅の社員が新人の研修を担当しました。 — A mid-career employee was responsible for training the new staff.
  • そのチームでは中堅の選手が若手を支えています。 — On that team, experienced players support the younger ones.