liǎng

two

both; some; a few; tael, unit of weight equal to 50 grams (modern) or 1⁄16 of a catty 斤[jin1] (old)

one roof (一) + enclosure (冂) + two people (从) = two, a pair

The original form showed two people (从) side by side inside a boundary (冂), under a single roof (一) — a pair sharing the same space. From 'a pair' came the broader senses of both, some, and the weight unit tael.

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OneSemantic
Two people togetherSemantic
EnclosureSemantic

Words with 两

两重天

liǎng chóng tiān

two entirely different worlds; two contrasting realities

两难

liǎng nán

dilemma

进退两难

jìn tuì liǎng nán

no room to advance or to retreat (idiom); without any way out of a dilemma

银两

yín liǎng

silver (as currency)

首鼠两端

shǒu shǔ liǎng duān

(idiom) to hesitate

一个头两个大

yī ge tóu liǎng ge dà

(coll.) to feel as though one's head could explode (Tw)

一刀两断

yī dāo liǎng duàn

(idiom) to make a clean break with; to have nothing more to do with

一分钱两分货

yī fēn qián liǎng fēn huò

high quality at bargain price

一回生两回熟

yī huí shēng liǎng huí shú

see 一回生二回熟[yi1 hui2 sheng1 er4 hui2 shu2]

一国两制

yī guó liǎng zhì

one country, two systems (PRC proposal regarding Hong Kong, Macau and Taiwan)

一家人不说两家话

yī jiā rén bù shuō liǎng jiā huà

lit. family members speak frankly with one another, not courteously, as if they were from two different families (idiom)

一折两段

yī zhé liǎng duàn

to split sth into two (idiom)

More characters with 一