► 動詞作り上げる [(5)つくりあげる]
meaning: build rank: 2☆
彼は
ゼロから
世界屈指の
自動車会社を作り上げた ⇨ He has built a world-class automotive company from zero
(☛ Build something complex from zero to completion)☆
彼は
一人でOSを作り上げた ⇨ He’s build an OS all by himself
(☛ Build something complex from zero to completion)