底层

Traditional form:

底層

Pinyin (reading):

dǐcéng

Definitions:

• ground floor; first floor
• lowest level; lowest rung (of society etc)

Characters:

• 底 - bottom, underside; below, underneath
• 层 - layer, floor, story, stratum

Traditional characters:

• 底 - bottom, underside; below, underneath
• 層 - layer, floor, story, stratum