ダチ

• 読み: ダチ
• ローマ字: dachi
• 漢字の分解: Shortened from 友達 (tomodachi, friend) → keeping just ダチ for a casual, rough tone
• 発音: /da.tɕi/

意味

A close friend, pal, or buddy — a rough, masculine-sounding abbreviation of 友達.

ダチ is a clipped form of 友達 (tomodachi) that keeps only the last two mora. It has a distinctly rough, masculine, and street-tough flavour — you are more likely to hear it from male speakers or in media depicting delinquent or working-class characters. While it implies genuine closeness and loyalty between friends, its register is much more casual and rough than 友達.

例文

1. 高校のダチとは今でもたまに飲みに行くよ。
2. ダチだろ？困ったときはお互い様じゃん。
3. 本当のダチは数えるくらいしかいないよな。

使い方ガイド

場面: friends, masculine speech, delinquent culture, media

トーン: rough, loyal, masculine

正しい言い方

• あいつは昔からのダチだから信頼してる。 (He's been my buddy since way back — I trust him.)
• ダチ思いなとこがあいつのいいとこだよ。 (The good thing about him is how much he cares about his friends.)

避ける言い方

• 女性同士で「ダチ」はあまり使わない — 男性的な響きが強い (Women rarely use ダチ with each other — it sounds very masculine)

よくある間違い

• Using ダチ in mixed or formal company — it has a rough, masculine tone that can sound out of place outside casual male friendship contexts

起源と歴史

Shortened from 友達 (tomodachi, friend). The abbreviation ダチ retains only the ending and has been part of masculine/rough slang since at least the Showa era. Common in ヤンキー (delinquent) subculture and media.

文化的背景

時代: Showa-era masculine slang, still current

世代: All ages, predominantly male speakers

社会的背景: Rough/masculine register

地域メモ: Used across all of Japan. Often heard in ヤンキー culture, manga, and films about male friendship and loyalty.