• 作さく — a work / a creation
• 作つくる — to make, to create
• 作品さくひん — (artistic) work, piece
• 作家さっか — author
• 作文さくぶん — composition, essay
• 操作そうさ — operation, handling

作 is a 会意 (compound ideograph) composed of 亻 (person) and 乍 (to begin, suddenly), suggesting “a person doing something” — the act of creating or producing.

私わたしが 朝あさごはんを作つくります。
I make breakfast.

この作品さくひんは 有名ゆうめいです。
This work is famous.

🎧 Practice the native pronunciation of 作.