落ちる

• Reading: おちる
• Romaji: ochiru
• Kanji breakdown: 落 (fall/drop) + ちる (verb ending) → to fall → to crash (tech meaning)
• Pronunciation: /o.tɕi.ɾu/

Meaning

To crash — when an app, game, system, or website suddenly stops working or shuts down unexpectedly.

While 落ちる literally means 'to fall,' in tech contexts it is universally used to describe software crashing, servers going down, or systems failing. This usage has been part of Japanese tech vocabulary since the early internet era. It is used across all levels of formality, from casual complaints to semi-formal incident reports.

Examples

1. ゲーム中にアプリ落ちて全部やり直しになった。 The app crashed in the middle of my game and I had to start all over.
2. Zoomが急に落ちて会議中断しちゃった。 Zoom suddenly crashed and interrupted the meeting.
3. このアプリ最近よく落ちるんだけど、アップデートしたほうがいい？ This app has been crashing a lot lately — should I update it?

Usage Guide

Context: tech discussion, daily conversation, gaming, work

Tone: frustrated, matter-of-fact

Do Say

• アプリがまた落ちた、イライラする。 (The app crashed again, so frustrating.)
• サーバー落ちてるみたいだから待つしかない。 (Looks like the server is down, we just have to wait.)

Don't Say

• 障害報告で「落ちました」だけだと情報不足 — 状況を詳しく説明する (Just saying 'it crashed' in an incident report lacks detail — describe the situation fully)

Common Mistakes

• Not distinguishing between the app crashing (アプリが落ちる) and the server going down (サーバーが落ちる) — different causes, same verb

Origin & History

Extension of 落ちる (to fall/drop) to technology. Has been used in computing contexts since at least the 1990s, mirroring the English usage of 'crash' or 'go down.' One of the oldest tech slang terms in Japanese.

Cultural Context

Era: 1990s computing era, still universal

Generation: All ages

Social background: Universal

Regional notes: Used across all of Japan. One of the most fundamental tech vocabulary words in Japanese.