上下
1
top and bottom;high and low;above and below;upper and lower ends;up and down
彼は旗を上下に動かした。
He moved the flags up and down.
2
going up and down;rising and falling;fluctuating
3
going and coming back
4
upper and lower classes;ruler and ruled;the government and the people
5
first and second volumes
6
top and bottom;two-piece (outfit)