再~

さい~

re ~

JLPT N2

Character Breakdown

Meaning and Usage

The prefix 再~ (さい~) means "re-" or "again," indicating that an action is being done once more or repeated. It is commonly attached to verbs or nouns to form compound words that express repetition or renewal.

Common Collocations

  • 再提出 (さいていしゅつ): resubmission, used when submitting something again.
  • 再確認 (さいかくにん): reconfirmation, used when verifying something again.
  • 再利用 (さいりよう): reuse, referring to using something again.

Usage Notes

This prefix is formal and often used in written or polite contexts, such as business, official documents, or formal speech. It is not typically used in casual conversation where simpler expressions like もう一度 (once more) might be preferred.

Common Mistakes

Learners sometimes confuse 再~ with simple repetition adverbs like また or もう一度. Remember that 再~ is a prefix that attaches to nouns or verbs to form compound words, not a standalone adverb.

Summary

Use 再~ to express the idea of "doing something again" in a formal or written context. It helps create compound words that are common in business, official, or technical language.

Example Sentences

このしょるいはさいていしゅつがひつようです。

This document needs to be resubmitted.

さいかくにんのためにもういちどせつめいします。

I will explain it once more for reconfirmation.

さいりようできるしげんをたいせつにしましょう。

Let's take care of resources that can be reused.