Täydennä

Täydennä is a Finnish verb used as an imperative meaning "complete" or "fill in." It is commonly employed in instructions, forms, and educational materials to prompt someone to provide missing information or to finish a task. The form signals that the listener should add content to an existing document, record, or statement.

In typical usage, Täydennä is followed by a direct object referring to the information to be supplied, such as lomake (form), tiedot (details), vastaus (answer), or puutteet (gaps). Examples include Täydennä lomake before returning it, or Täydennä puuttuvat tiedot. In many contexts, it appears on online forms and paper questionnaires as a concise instruction to the respondent.

The word is related to täyttää ("to fill") and täydennys ("completion" or "supplement"). It is part of Finnish mood and aspect, functioning as an imperative form directed at the listener. The imperative is commonly used in instructional writing, user interfaces, and educational tasks, where precise completion of information is required.