to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)

= + : Helga Horse (hu-) smuggled herself into the Eiffel Tower's kitchen (-ei2). She covered herself in an enclosure (囗) full of mandarins (口). Unfortunately, she missed one little detail: The box full of mandarins is to be shipped back (回) to China soon.
to curve / to return / to revolve
variant of 迴|回[hui2]

回 character breakdown

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).
enclosure

Mnemonic symbol: a plastic enclosure. Willy Walrus (w) is keeping frozen fish in an enclosure (囗) in the Eiffel Tower's kitchen (ei2).

Characters with 回 as component

to curve / to return / to revolve
variant of 回[hui2]

= + : Let's say this one looks like a closet.
stingy

= + + : Mnemonic symbol: stingray.

The stingy stingray (啬) and the mean crocodile (丷) want to return (回) to the river using the elevator's toilet (e4), but lots of dirt (土) is blocking their way. They ask the elevator's boss Socrates (s) for help, but he doesn't make his hands dirty so he starts a boring monologue about living as an expat. As the stingray and the crocodile realize he won't help them they start crying out loudly.
surname Dan
sincere

= + + : Mnemonic symbol: to bow and show how earnest you mean it.

Don Quixote (d) ordered a beer at the bar in the anthill (an3). The barkeeper questions whether or not Don Quixote will return (回) the mug (旦) after he finishes his beer, so Don Quixote bows and shows how sincere (亶) he is by handing over his beret (亠) as security deposit.
rustic / low / base / mean / to despise / to scorn

= + + + : The imperator (阝) thinks Brunhilde (bi) is despicable (鄙) because she wants to go back to earth. Inside of the space station (Ø3) she gets ready to return in her box full of mandarins (回) and dons her beret (亠). As a goodbye gift she throws a mandarin (口) towards the imperator and returns (回) to earth.
see 徘徊[pai2 huai2], to dither / to hesitate / to pace back and forth / irresolute

= + : Just inside the airplane's kitchen (ai2) Helga Horse (hu) cannot decide whether or not she should return (回) back to her hometown. She already put on her black sneakers (彳) but she keeps pacing back and forth (徊).
fennel / aniseed
(bound form) fennel
eddying / whirling (of water) / to go against the current

Words with 回

to make a round trip / return journey / back and forth / to and fro / repeatedly
next chapter / next time
unfamiliar at first, but well accustomed soon enough (idiom)
see 一回生二回熟[yi1 hui2 sheng1 er4 hui2 shu2]
not regard as a matter (of any importance)
to listen to the next chapter for an explanation
repeatedly / back and forth again and again
one and the same (thing) / one thing (as distinct from another)

Sentences with 回

dà
wáng
huí
lái
le