Japanese symbol for “sd”

標準偏差

ひょうじゅんへんさ

Romaji: hyoujunhensa

standard deviation; SD

In Japanese, sd is 標準偏差, read ひょうじゅんへんさ (hyoujunhensa).

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 standard deviation; SD (math)

Kanji and stroke order

標

signpost, seal, mark

on: ヒョウ
kun: しるべ、しるし

15 strokes · JLPT 2

準

semi-, correspond to, proportionate to

on: ジュン
kun: じゅん.じる、じゅん.ずる、なぞら.える、のり

13 strokes · JLPT 2

偏

partial, side, left-side radical

on: ヘン
kun: かたよ.る

11 strokes · JLPT 1

差

distinction, difference, variation

on: サ
kun: さ.す、さ.し

10 strokes · JLPT 2

Other Japanese words for “sd”

Word	Reading	Meaning
突発性難聴	とっぱつせいなんちょう toppatsuseinanchou	sudden deafness; SD; sudden sensorineural hearing loss
ショートダンス	ショートダンス shootodansu	short dance (in ice dancing); SD

Related words

Words that share a kanji.

Word	Reading	Meaning
目標	もくひょう mokuhyou	goal; target; aim
標準	ひょうじゅん hyoujun	standard; criterion; norm
標識	ひょうしき hyoushiki	sign; mark; marker
指標	しひょう shihyou	index; indices; indicator
標本	ひょうほん hyouhon	specimen; sample
標的	ひょうてき hyouteki	target
準備	じゅんび junbi	preparation; arrangements; getting ready
基準	きじゅん kijun	standard; criterion; norm
偏見	へんけん henken	prejudice; bias; distorted view
差別	さべつ sabetsu	distinction; differentiation; discrimination

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.