おやすー

• 読み: おやすー
• ローマ字: oyasuu
• 発音: /o.ja.sɯː/

意味

A casual, abbreviated way to say goodnight, shortened from おやすみ.

おやすー chops おやすみ even further and adds the elongation mark ー for a sleepy, relaxed feel. It is commonly used in late-night LINE chats and social media posts before bed. The tone is warm and intimate, typically used between close friends or romantic partners.

例文

1. もう眠いからおやすー。
2. おやすー、また明日ね！
3. 今日楽しかった、おやすー。

使い方ガイド

場面: texting, close friends, social media, late-night chat

トーン: sleepy, intimate, warm

正しい言い方

• じゃあおやすー、明日早いんだ (Well, g'night, I've got an early morning)
• おやすー💤 (Night night 💤)

避ける言い方

• 目上の人や初対面の人に「おやすー」は使わない — 「おやすみなさい」を使う (Don't use おやすー with seniors or people you just met — use おやすみなさい)

よくある間違い

• Using おやすー in situations where おやすみ or おやすみなさい would be more appropriate
• Not realising how intimate this abbreviation sounds — it implies closeness

起源と歴史

Truncated from おやすみ (oyasumi), the standard goodnight greeting derived from 休む (yasumu, to rest). The ー elongation adds a laid-back, sleepy tone. Popular in texting culture since the 2000s.

文化的背景

時代: 2000s-2010s texting culture

世代: 10s-30s

社会的背景: Youth/casual

地域メモ: Used nationwide in casual digital communication. Particularly common among younger speakers in LINE and Twitter.