layer

Noun

• thin structure composed of a single thickness of cells

• a hen that lays eggs

• an abstract place usually conceived as having depth
  • a good actor communicates on several levels
    
  • a simile has at least two layers of meaning
    
  • the mind functions on many strata simultaneously
    

• a relatively thin sheetlike expanse or region lying over or under another

• single thickness of usually some homogeneous substance
  • slices of hard-boiled egg on a bed of spinach
    

Verb

• make or form a layer
  • layer the different colored sands
    

Related words

• Synonyms: 
  level , stratum , bed