roar / cry / CL:個|个[ge4]
ordinal number / day of a month / mark / sign / business establishment / size / ship suffix / horn (wind instrument) / bugle call / assumed name / to take a pulse / classifier used to indicate number of people

= + : Hamlet accidentally locked himself into the aorta's bathroom, together with a mandarin which he is extremely allergic against. His only rescue is the emergency breathing mask attached to the wall which he puts on immediately. There is also a trumpet to call for help with a bugle call, but Hamlet has to wear the breathing mask, so he can't give the bugle call in a normal way. Instead, he has to give the bugle call with his butt.

号 character breakdown

"breath" or "sigh" component in Chinese characters

Mnemonic symbol: a breathing mask.

The air inside of the aorta is so bad that Karl Marx needs a breathing mask to breathe freely.
mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

Mnemonic symbol: 口 shall be represented by a mandarin. Karl Marx (k-) is enjoying a mandarin in the outhouse's living room (ou3).

Characters with 号 as component

roar / cry / CL:個|个[ge4]
ordinal number / day of a month / mark / sign / business establishment / size / ship suffix / horn (wind instrument) / bugle call / assumed name / to take a pulse / classifier used to indicate number of people

= + : Hamlet accidentally locked himself into the aorta's bathroom, together with a mandarin which he is extremely allergic against. His only rescue is the emergency breathing mask attached to the wall which he puts on immediately. There is also a trumpet to call for help with a bugle call, but Hamlet has to wear the breathing mask, so he can't give the bugle call in a normal way. Instead, he has to give the bugle call with his butt.
owl (order Strigiformes)
empty / hollow of a tree
voice of anger / vast / spacious

Words with 号

comma (punct.)
vehicle number (license plate number, taxi number, bus number, train car number)
division sign (math.)
consecutive serial numbers / chain (of supermarkets, hotels etc) / hyphen
Progress (name of Russian spaceship)
Liaoning, the first aircraft carrier commissioned into the PLA Navy (commissioned in 2012)
(music notation) natural sign, ♮
RMS Titanic, British passenger liner that sank in 1912 (Tw) / PRC equivalent: 泰坦尼克號|泰坦尼克号[Tai4 tan3 ni2 ke4 Hao4]
Chinese centered dot mark · (punct. used to separate Western names or words)
Russian cruiser Aurora, firing the shot signaling the 1917 revolution, a favorite of communist iconography
(music) flat (♭)
variant of 身份證號碼|身份证号码[shen1 fen4 zheng4 hao4 ma3] / I.D. number
turn signal (auto.) / turning indicator
tracking number (of a package shipment)

Sentences with 号

da̅
ying
ǎn
lǎo
su̅n
zhè
gè
che̅ng
hào
便
biàn
ba