► 名詞技術者 [(4)ぎじゅつしゃ]
meaning: engineer rank: 2☆ 技術
者達が
ロケット発射の
準備をしている ⇨ Engineers are preparing for the rocket launch
工学 [(1)こうがく]
meaning: engineer rank: 3☆ 機械工学 ⇨ Mechanical engineering
工科 [こうか]
meaning: engineer rank: 4☆ 工科大学 ⇨ An engineering college
(☛ Engineering as an academic subject)