Word
Kana: かんせい Romaji: kansei Level: N3

完成

Meaning in English

completion, finish, perfection

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Dictionary

Word context

What it means

完成 means the state of being complete or finished, the act of bringing something to its end, or the result that is fully made. It is used for projects, plans, products, and processes to indicate that they have reached their intended end point; it can function as a noun and, with する, to form a verb that expresses the action of completing something.

Main meanings

  • The state of having reached the end or proper form of something; the finish line of a project, construction, or plan.
  • The finished product or output, not just the process, often used as 完成品 for clarity.
  • Degree or extent of completion, used in contexts like progress reporting or quality checks (完成度).

How to use it

Used in formal, technical, and everyday contexts to denote completion. Commonly pairs with 完成する to describe the act of finishing a process, or with 完成品 and 未完成 in product and project language. In written Japanese, it appears in reports, plans, manuals, and manufacturing contexts.

Variants and close terms

  • 完了 — kanryou; more formal sense of completion or finalization
  • 未完成 — mikansei; incomplete
  • 完成品 — kanseihin; finished product

Composition

  • 完: complete, perfect; here it contributes the sense of reaching a final state
  • 成: become, achieve; here it adds the notion of resulting state or completion
  • When combined as 完成, the characters fuse to express the act or state of bringing something to its final, finished form

Word class

Noun, suru-verb (名詞, する動詞)

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