(more specifically) the upper body and the lower body / (more specifically) upstream and downstream / (more specifically) upstage and downstage / (more specifically) the city and the countryside

(traditional Japanese clothing) the robe and hakama as a set / (by extension) extreme formality

(music) a rise in tone and a fall in tone

(music) to rise and fall in tone

up and down / the upper and the lower (especially, the rulers and the ruled) / rising and falling / an exchange of opinions

to rise and fall / to exchange opinions

to ascend and descend, to climb up and climb down

the nobility and the commoners / volumes one and two of a two-volume book or other document / (clothing) a suit, a set of clothing consisting of garments for the upper and lower body

to travel roundtrip on a river, going both upstream and downstream / to rise and fall, to ascend and descend / to exchange words, to discuss, to question and answer

ascending and descending, climbing and coming back down (particularly as of a person or thing travelling or moving up and down, such as stairs or levels)