B1noun2K

Layer

UK /["/ˈleɪə(r)//leə(r)/"]/US /["/ˈleɪər/"]/

Definition

a quantity or sheet of something that lies over a surface or between surfaces

In simple words: A flat part of something that is stacked or piled on top of others.

Examples

  • She wore three layers of clothing to stay warm in the winter.
  • The cake has a chocolate layer between the vanilla layers.
  • You should apply another layer of paint to achieve a smoother finish.
  • Geologists study the layers of rock to understand Earth's history.
  • In the software, each layer represents a different part of the process.

Usage notes

Used in many contexts, from cooking to construction. It’s neutral and suitable for both spoken and written English. Avoid using it in overly formal scientific contexts without clarification.

Grammar pattern

layer + object

Memory hint

Think of 'layer' like a cake with different levels stacked on each other.

Collocations

  • fine
  • thin
  • deep
  • form
  • add
  • apply
  • cake
  • beneath a/​the layer
  • under a/​the layer
  • in layers
  • layer after layer
  • layer upon layer

Synonyms

  • stratum
  • sheet
  • level
  • coat
  • tier

Antonyms

  • unlayer
  • remove

Common mistakes

  • Confused with 'lie' vs 'layer' – be sure to use 'layer' for stacking.
  • Using 'layer' as a verb incorrectly – remember it can also be a noun.
  • Omitting the object – e.g., saying 'I will layer' without specifying what.