費やす

• 読み: ついやす
• ローマ字: tsuiyasu
• 漢字の分解: 費 (hi/tsui) — expense, cost, spend
• 発音: /tsɯ.i.ja.sɯ/

意味

To spend; to expend; to consume. Used for time, money, energy, or resources devoted to something.

A Group 1 (godan) transitive verb that emphasises the expenditure or consumption of resources. Unlike 使う which is neutral, 費やす often carries the nuance of significant or deliberate investment of resources. Frequently collocates with 時間 (time), お金 (money), and 労力 (effort).

例文

1. このプロジェクトに多くの時間を費やした。
2. 彼は研究に人生の大半を費やしてきた。
3. 無駄なことにエネルギーを費やすべきではない。

使い方ガイド

場面: business, academic, daily life

トーン: objective

起源と歴史

From the kanji 費 (expense, cost), which depicts resources being scattered or used up. Originally a literary Sino-Japanese reading applied to the native verb pattern.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal