Japanese word

防水

Pronunciation

Romajibōsui

Meaning

  • nounwater resistance

Example

この時計は防水です。ko no tokei wa bō sui de su

This watch is waterproof.

Illustration for 防水 (water resistance)

More examples

雨の日は靴の防水が大切です。ame no hi wa kutsu no bō sui ga tai setsu de su

Water resistance is important for shoes on rainy days.

Core concept

Centers on blocking water from passing into something through its material, design, or treatment.

Common phrases

  • 防水仕様bō sui shi yō

    waterproof design

  • 防水加工bō sui ka kō

    waterproofing treatment

  • 防水性能bō sui sei nō

    waterproof performance

Similar words

耐水taisui: The ability to withstand contact with water without losing function or condition.
防滴bōteki: Protection against water drops and light splashes, with limited resistance to water entry.
撥水hassui: The ability of a surface to make water form droplets and run off.

Definition in Japanese

水の侵入を防ぐ性質や処理。mizu no shin nyū o fuse gu sei shitsu ya sho ri

Word origin

防水 (bōsui) combines 防 (bō, "prevent") with 水 (sui, "water"), forming a compound whose parts directly express the idea of preventing water.

Usage tips

  • In descriptions of watches, bags, and clothing, 防水 (bōsui) commonly identifies resistance to water as a product feature rather than naming the object itself.

Other meanings

  • waterproofingnoun

Related words

  • 防水性bōsuiseiwater resistancenoun
  • 防水化bōsuikawaterproofingnoun

Word lists with this word