層 - stratum, social class, layer

unaffiliated voters; floating voters; swinging voters

stratosphere

upper stratum (classes, stories, storeys); upper layer; layer above

depths; deep level

age range; age-group; age bracket

class; level; stratum; layer; hierarchy

even more; still more; all the more; more than ever

very; extremely; exceedingly; greatly; terribly

multistoried; multilayered

fault; dislocation

high-rise (building); multistory; multistoried; tall

stratum; geological formation; layer; bed (coal, gravel, etc.)