noun

1. A single thickness of some material covering a surface.

   “After the first coat of paint dried, he applied another layer.”

2. A (usually) horizontal deposit; a stratum.

   “I find seven-layer cake a bit too rich.”

3. One of the items in a hierarchy.

   “mired in layers of deceit”

Synonyms: lay, stratum

verb

1. To cut or divide (something) into layers

2. To arrange (something) in layers.

   “Layer the ribbons on top of one another to make an attractive pattern.”