the number of overlaps; fold, layer

(archaic) the place of residence of the emperor / (by extension) a capital city / (by extension) a capital (most important city in the field specified)

a capital city / a city, metropolis / Short for 東京都 (Tōkyō-to): the capital prefecture of Tokyo

(chemistry, organic chemistry) polymer

heavy electric

a male given name

single, onefold / one layer

double, twofold

double, twofold / Short for 二重瞼 (futae-mabuta).

heavy industry