土砂

• Reading: どしゃ
• Romaji: dosha
• Kanji breakdown: 土 (do) — earth, soil; 砂 (sha) — sand
• Pronunciation: /do.ɕa/

Meaning

Sediment; earth and sand, especially as moved by natural forces like water or gravity.

A noun used primarily in contexts involving natural disasters and geology. 土砂崩れ (landslide/mudslide) and 土砂災害 (sediment disaster) are critical terms in disaster preparedness. 土砂降り (downpour, literally 'earth-and-sand pouring') is a common expression for extremely heavy rain. Japan is particularly prone to 土砂災害 due to its mountainous terrain and heavy rainfall.

Examples

1. 大雨の影響で山から大量の土砂が流れ出した。 A large amount of sediment washed down from the mountains due to heavy rain.
2. 土砂災害の危険があるため避難勧告が出された。 An evacuation advisory was issued due to the risk of a landslide.
3. 工事現場から土砂を運び出すトラックが行き来している。 Trucks carrying earth and sand in and out of the construction site are coming and going.

Usage Guide

Context: disaster, weather, construction, geography

Tone: serious

Origin & History

From Sino-Japanese 土 (do, earth/soil) + 砂 (sha, sand). Literally 'earth and sand,' a straightforward compound describing the mixed material of soil and sand.

Cultural Context

Era: Ancient

Generation: All ages

Social background: Universal