Usage of the character 拓

Deng Tuo (1912-1966), sociologist and journalist, died under persecution at the start of the Cultural Revolution
wrote under the pen name Ma Nancun 馬南邨／马南邨

Tuòbá

拓跋

[拓跋]

branch of the Xianbei 鮮卑／鲜卑 nomadic people, founders of Wei 北魏 of the Northern Dynasties (386-534)
also written 拓拔

tuòzhǎn

拓展

[拓展]

to expand (one's client base, outlook etc)

tuòpū

拓扑

[拓撲]

(math.) (loanword) topology

tàyìn

拓印

[拓印]

stone rubbing (to copy an inscription)

tàběn

拓本

[拓本]

rubbing of inscription

luòtuò

落拓

[落拓]

down and out
in dire straits
unrestrained
unconventional

tuòkuān

拓宽

[拓寬]

to broaden

tuòhuāng

拓荒

[拓荒]

to open up land (for agriculture)

Tuòbá

拓拔

[拓拔]

branch of the Xianbei 鮮卑／鲜卑 nomadic people, founders of Wei 北魏 of the Northern Dynasties (386-534)
also written 拓跋

tuòhuāngzhě

拓荒者

[拓荒者]

pioneer
groundbreaker

Tuòbá Wèi

拓跋魏

[拓跋魏]

Wei of the Northern Dynasties (386-534)

tuòpūxué

拓扑学

[拓撲學]

(math.) topology

kāituòxìng

开拓性

[開拓性]

pioneering
groundbreaking

tuòzhǎnwù

拓展坞

[拓展塢]

(computing) hub; dock

kāituòzhě

开拓者

[開拓者]

pioneer

Bìhuó Bìtuò

必和必拓

[必和必拓]

BHP Billiton (Anglo-Australian mining corporation)

kāijiāngtuòtǔ

开疆拓土

[開疆拓土]

(idiom) to expand one's territory; to conquer new lands
(fig.) to expand one's business into new markets

tuòzhǎnxùnliàn

拓展训练

[拓展訓練]

outdoor education program

tuòpūkōngjiān

拓扑空间

[拓撲空間]

(math.) topological space

dàishùtuòpū

代数拓扑

[代數拓撲]

(math.) algebraic topology

tuòzhǎnshìyě

拓展视野

[拓展視野]

to broaden one's horizons

jǐhétuòpū

几何拓扑

[幾何拓撲]

(math.) geometric topology

tuòpūjiégòu

拓扑结构

[拓撲結構]

topological structure

jǐhétuòpūxué

几何拓扑学

[幾何拓撲學]

(math.) geometric topology