What is the difference between "する", "洗濯する", "頑張る", "〜てしまう", "敝蓋不棄"?

"する" means "to do, to make", "洗濯する" means "to do laundry", "頑張る" means "to do one's best, to try hard, to persevere", "〜てしまう" means "to do completely; to do regrettably/unintentionally", "敝蓋不棄" means "do not discard a worn-out lid; a metaphor for valuing old things or long-standing friendships".

Quintuple VS

Synonym Boundary: "する", "洗濯する", "頑張る", "〜てしまう", "敝蓋不棄"

All represent the core concept "do", but require precise selection.

Japanese Option A

する

する (suru)

N5 / CEFR

Japanese Option B

洗濯する

せんたくする (sentaku suru)

N4 / CEFR

Japanese Option C

頑張る

がんばる (ganbaru)

N4 / CEFR

Japanese Option D

〜てしまう

〜てしまう (te shimau)

N3 / CEFR

Japanese Option E

敝蓋不棄

へいがいふき

C2PLUS / CEFR

Quintuple VS Nuance Contrast & Social Differences

When expressing "do" in Japanese, you must carefully distinguish between "する", "洗濯する", "頑張る", "〜てしまう", "敝蓋不棄" based on context.

する (する (suru) - Level: N5): Maps to "to do, to make" and is used when A very versatile verb. Polite form is します.
洗濯する (せんたくする (sentaku suru) - Level: N4): Maps to "to do laundry" and is used when 服や布を洗ってきれいにすること。.
頑張る (がんばる (ganbaru) - Level: N4): Maps to "to do one's best, to try hard, to persevere" and is used when A versatile word used to encourage oneself or others to try hard, persist, or endure. Common phrases include 頑張って.
〜てしまう (〜てしまう (te shimau) - Level: N3): Maps to "to do completely; to do regrettably/unintentionally" and is used when Expresses either the completion of an action, often implying 'finished doing,' or an action done unintentionally or regrettably. In casual speech, it's often shortened to 〜ちゃう/〜じゃう.
敝蓋不棄 (へいがいふき - Level: C2PLUS): Maps to "do not discard a worn-out lid; a metaphor for valuing old things or long-standing friendships" and is used when Essential structural term in CEFR C2PLUS vocabulary syllabus..

Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!

Context for "する"

毎日日本語を勉強します。

I study Japanese every day.

Context for "洗濯する"

週末に洗濯をします。

I do laundry on the weekend.

Context for "頑張る"

次の試験のために毎日一生懸命頑張ります。

I will do my best every day for the next exam.

Context for "〜てしまう"

大事な書類をなくしてしまいました。

I accidentally lost important documents.

Context for "敝蓋不棄"

私は敝蓋不棄に興味があります。

I am interested in do not discard a worn-out lid; a metaphor for valuing old things or long-standing friendships.

Synonym Mastery Challenge

Which Japanese word perfectly fits this blank space?

Fill in the blank: "毎日日本語を勉強します。" (Meaning: "I study Japanese every day.")

🎉 Correct Answer!

Remember: "する" is correct here because it represents "to do, to make" in the context: "I study Japanese every day.".