Japanese symbol for “glasshouse”

温室

おんしつ

Romaji: onshitsu

greenhouse; hothouse; conservatory; glasshouse

In Japanese, glasshouse is 温室, read おんしつ (onshitsu).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

n greenhouse; hothouse; conservatory; glasshouse

Kanji and stroke order

温

warm

on: オン
kun: あたた.か、あたた.かい、あたた.まる、あたた.める

12 strokes · JLPT 2

室

room, apartment, chamber

on: シツ
kun: むろ

9 strokes · JLPT 3

Related words

Words that share a kanji.

Word	Reading	Meaning
温泉	おんせん onsen	hot spring
気温	きおん kion	(air) temperature
温度	おんど ondo	temperature
温暖	おんだん ondan	warm; mild; temperate
体温	たいおん taion	body temperature
高温	こうおん kouon	high temperature
教室	きょうしつ kyoushitsu	classroom; lecture room
室内	しつない shitsunai	indoor; inside the room

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.