strata

Parallel rock beds

Strata is the plural of stratum—layers of material, especially in geology where rock forms in horizontal beds over time.

The word extends to any layered arrangement: social strata, strata of management.

In Australian English, strata also refers to a system of property ownership in multi-unit buildings: strata fees, strata title.

geology

sediment

Particles settling in liquid

  • rockSolid earthen material
  • fossilPreserved ancient organism
  • bedrockSolid stone underground

stratigraphy · outcrop · sedimentary · igneous · metamorphic · deposition · erosion · limestone · shale · sandstone

hierarchy

levels

Heights or ranked stages

  • tiersHorizontal arranged levels
  • layersStacked levels or coatings
  • gradationIncremental transition between stages

echelons · order · structure · arrangement · scale · ladder · pyramid · ranking · spectrum · sequence

social

class

Grouping by shared traits

mobility · elite · bourgeoisie · proletariat · status · wealth · poverty · socioeconomic · ranking · upper

data

layers

Stacked levels or coatings

segmentation · aggregation · filtering · dimensions · subsets · groupings · sampling · variables · clusters · partitions

archaeology

excavation

Act of unearthing

  • artifactsHuman-made historical objects
  • digUnearth by shoveling
  • siteDesignated location

pottery · settlements · prehistoric · trowel · ruins · relics · tomb · culture · civilization · carbon-dating

stratigraphy

correlation

Statistical relationship measure

superposition · sequence

historical

epoch

Distinct historical period

  • eraDistinct historical period
  • periodPunctuation ending sentences
  • timelineOrdered display of events

antiquity · medieval · ancient · prehistoric · civilization · dynasty · chronicle · century · millennium · heritage

Categories
Opposites
layered vs. uniform structure

stratahomogeneity

State of sameness throughout

uniformity · monolith · continuum · blend · mixture

hierarchical division vs. unity

strataunity

Wholeness through cohesion

equality · classlessness · uniformity · egalitarianism · oneness

plurality vs. singularity

stratasingle layer

One thickness only

stratum · monolith

Phrases
Family

stratum, stratify, stratified, stratification, stratosphere, stratifying, stratigraphic, stratovolcano, stratifies

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Rated G