ダイヤ

• 読み: ダイヤ
• ローマ字: daiya
• 発音: /da.i.ja/

意味

Railway timetable or schedule. Also means diamond (the gemstone or shape).

A loanword-based noun with two distinct meanings. In transportation contexts, ダイヤ is short for ダイヤグラム (diagram), referring to train schedules. In other contexts, it is short for ダイヤモンド (diamond). The railway meaning is especially common in daily Japanese life.

例文

1. 台風の影響でダイヤが大幅に乱れている。
2. 新しいダイヤは来月から適用される。
3. 婚約指輪にはダイヤがついていた。

使い方ガイド

場面: transportation, news, daily life

トーン: neutral

起源と歴史

Abbreviation of English 'diagram' (for railway schedules) and 'diamond' (for the gemstone). Both entered Japanese during the Meiji era with the introduction of railways and Western jewellery culture.

文化的背景

時代: Modern

世代: All ages

社会的背景: Universal