Nouns

(n)layer, bedsingle thickness of usually some homogeneous substance“slices of hard-boiled egg on a bed of spinach”
(n)layera relatively thin sheetlike expanse or region lying over or under another
(n)level, layer, stratuman 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”
(n)layera hen that lays eggs
(n)layerthin structure composed of a single thickness of cells

Verbs

(v)layermake or form a layer“layer the different colored sands”