七つ下りの英語

a heptad

“Old age is a second childhood”【イディオム・格言的】

six angles

a sextette

an octad

the fifth―No.5 （＝ number five）

a nonet

“Old age is a second childhood.”【イディオム・格言的】

I weigh about 120 pounds.

eight surfaces

in Japan, the eighth of the ten calendar signs, called 'kanoto'

I weigh fifteen stones.

I stand five feet six.

seven shoals

there are seven continents

seven stars

the seven deadly sins

seven kinds of something

eight disasters

seven kinds of something

having seven sides

eight shortcomings

the act of cutting something into six pieces

six o'clock in the evening

having six points

in Japan, the state of things being in piles of eight

six virtues

something that is in a pile of eight objects of the same kind

eight remonstrances

five lands areas and seven regions in ancient Japan called 'Goki Shichido'