to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore

= + : Mnemonic symbol: a first aid kit. Can you see the cross on the container?

= + : Yu the Great hurt her leg when she slipped in the engine's bathroom. The moon helps her to splint her leg using the bathroom's first aid kit and a dinosaur bone.

用 character breakdown

radical in Chinese characters (Kangxi radical 2)

Mnemonic symbol: a dinosaur bone. Gitta Giraffe (gu-) found a gorgeous dinosaur bone (丨) in the encampment's living room ((e)n3).
vertical stroke (in Chinese characters), referred to as 豎筆|竖笔[shu4 bi3]

Mnemonic symbol: a dinosaur bone. Sheldon Shrimp (shu) found a gorgeous dinosaur bone (丨) in the space station's bathroom (Ø4) and is cracking it open to eat its bone marrow.
moon / month / monthly / CL:個|个[ge4],輪|轮[lun2]

= + : Yu the Great (yu) is modelling a moon (月) in the elevator's bathroom (e4). He uses a stapler (⺆) to staple a lot of capacitors (二) together to form a moon shape, while the real moon is sitting for him.

Characters with 用 as component

surname Lu / place name
Japanese variant of 獵|猎
(dialect) very
(contraction of 不用[bu4 yong4]) need not; please don't
contraction of 不用[bu4 yong4] / need not / please don't

= + : In engine's kitchen ((e)ng2) Beelzebub (b) thinks that there is really no need (甭) for a mnemonic for 甭 because it is so obvious.
carbuncle
contraction of 勿用 / (dialect) need not / please don't
old variant of 甭[beng2] / need not

Words with 用

(for) military use / military application
use; application
use / application
to shift (funds) / to (legitimately) take funds set aside for one purpose in order to use them for another / to embezzle / to misappropriate
intention / purpose
to use illegitimately / to misappropriate / to embezzle
home-use / domestic / family expenses / housekeeping money
trial period / probationary period
to transfer (for a specific purpose) / to allocate / (computing) to invoke (a command, an application etc)
servant / to employ sb for a job / to manage people / to be in need of staff

Sentences with 用

zhè
xie̅
xia̅n
táo
shì
wáng
mǔ
zhua̅n
wéi
ka̅i
pán
táo
shèng
huì
yòng
de