èr

two

2; (Beijing dialect) stupid

one (一) + one (一) = two

Two horizontal strokes, one stacked above the other, directly count out the number two. The logic is as immediate as holding up two fingers.

+
The number oneSemantic

今天是月的第一天。

jīn tiān shì èr yuè de dì yī tiān。

Today is the first day of February.

一加一等于,这是最简单的数学。

yī jiā yī děng yú èr,zhè shì zuì jiǎn dān de shù xué。

One plus one equals two; this is the simplest math.

Words with 二

二来

èr lái

secondly, ...

臣一主二

chén yī zhǔ èr

One has the right to choose the ruler one serves. (ancient proverb)

周二

zhōu èr

Tuesday

周休二日

zhōu xiū èr rì

(Tw) two-day weekend (usually Saturday and Sunday)

邻苯二甲酸酯

lín běn èr jiǎ suān zhǐ

phthalate (chemistry)

鸟苷酸二钠

niǎo gān suān èr nà

disodium guanylate (E627)

黄花岗七十二烈士

huáng huā gāng qī shí èr liè shì

the seventy two martyrs of the Huanghuagang uprising of 23rd April 1911

黄道十二宫

huáng dào shí èr gōng

see 十二宮|十二宫[shi2 er4 gong1]

齐纳二极管

qí nà èr jí guǎn

Zener diode

一不做,二不休

yī bù zuò , èr bù xiū

lit. either don't do it, or don't rest (idiom)

一干二净

yī gān èr jìng

thoroughly (idiom)

一二

yī èr

one or two; a few

More characters with 一