A place name / a unisex given name / a surname / a unisex given name

(idiomatic) more or less

回収: collect / 改修: repair / 改宗: convert to a religion / 会集: meet, assemble

Small combining form of katakana ユ (yu) used in 拗音 (yōon) morae that end in u, such as シュ (shu), チュ (chu), and キュ (kyu). Historically not distinguished from full-size version.