One of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock).

Dutch: laag

People having the same social, economic, or educational status.

synonyms: class, social class, socio-economic class.

Dutch: geleding, klasse, laag
Polish: warstwa

An abstract place usually conceived as having depth.

synonyms: layer, level.

Roget 204: layer, stratum, strata, course, bed, zone, substratum, substrata, floor, flag, stage, story, tier, slab, escarpment; table, tablet; dess^†; flagstone; board, plank; trencher, platter.    plate; lamina, lamella; sheet, foil; wafer; scale, flake, peel; coat, pellicle; membrane, film; leaf; slice, shive^†, cut, rasher, shaving, integument etc. (covering) 223; eschar^†.    stratification, scaliness, nest of boxes, coats of an onion.    monolayer; bilayer; trilayer [Bioch.].    ... show more

Roget 213: horizontality^†; flatness; level, plane; stratum etc. 204; dead level, dead flat; level plane.    recumbency, lying down etc. v.; reclination^†, decumbence^†; decumbency^†, discumbency^†; proneness etc. adj.; accubation^†, supination^†, resupination^†, prostration; azimuth.    plain, floor, platform, bowling green; cricket ground; croquet ground, croquet lawn; billiard table; terrace, estrade^†, esplanade, parterre.    [flat land area] table land, plateau, ledge; butte; mesa (plain) 344.    [instrument to measure horizontality] level, spirit level.    ... show more

Dutch: laag
Polish: warstwa

A subpopulation divided into a stratified sampling.