一心

• 読み: いっしん
• ローマ字: isshin
• 漢字の分解: 一 (ichi/is) — one; 心 (shin) — heart, mind, spirit
• 発音: /is.ɕiɴ/

意味

One mind; wholeheartedness; single-minded devotion. Total concentration on one thing.

A noun and adverb expressing complete mental focus on a single purpose. Most frequently seen in the compound 一心に (wholeheartedly) or 一心不乱に (with undivided attention). Conveys intense determination or devotion, often used to describe studying, working, or pursuing a goal with unwavering focus.

例文

1. 彼女は合格を目指して一心に勉強した。
2. 母は家族のために一心に働いてきた。
3. 一心に祈る姿が印象的だった。

使い方ガイド

場面: determination, dedication, narrative, spirituality

トーン: earnest

起源と歴史

From Sino-Japanese 一 (ichi/is, one) + 心 (shin, mind/heart). Literally 'one heart-mind' — the entirety of one's mental and emotional focus directed at a single purpose.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal