English Reference
noun · verb

nest

n. · v.
US /ˈnɛst/ UK /nˈɛst/ nest UK spelling nests

  1. 01 A2 Elementary

    n.a structure built by a bird or animal to keep its eggs or babies safe.

    n.a structure constructed by a bird, insect, or other animal for the purpose of depositing eggs and rearing young.

    Simple

    We found a small bird's nest hidden high up in the apple tree.

    In context

    The eagle constructed a massive nest of sticks and moss on the inaccessible cliff face to protect its fledglings from predators.

    denburrowroost
  2. 02 B2 Upper Intermediate

    n.a set of similar objects of different sizes that fit inside one another.

    n.a collection of objects of graduated size, each designed to be stored within the next larger one.

    Simple

    She bought a nest of tables that saved a lot of space in the small living room.

    In context

    The kitchen was equipped with a convenient nest of mixing bowls, ranging from a small prep dish to a large five-litre vessel.

  3. 03 C1 Advanced Technical Military

    n.a hidden or protected place for a weapon, like a machine gun.

    n.a fortified or concealed position for a weapon or a small group of soldiers.

    Simple

    The soldiers spotted a sniper's nest in the clock tower.

    In context

    The infantry unit was tasked with neutralising a machine-gun nest that had pinned down the advancing platoon for several hours.

    poststrongpointbunker
  4. 04 B1 Intermediate

    v.to build or live in a nest.

    v.to build or occupy a nest; by extension, to settle into a comfortable home environment.

    Simple

    Many birds prefer to nest in the thick bushes near the river.

    In context

    The rare species of sea turtle returns to this specific beach every year to nest in the soft sand above the high-tide mark.

  5. 05 B2 Upper Intermediate Technical Computing

    v.to place one thing inside another, or to fit together in a stack.

    v.to fit an object or a piece of data inside another of the same type.

    Simple

    You can nest these plastic boxes to save space in the cupboard.

    In context

    The programmer had to nest several loops to process the multi-dimensional array efficiently, though it made the code harder to read.

    Usage

    Often used in programming to describe loops or functions inside other loops or functions.

When I bought him a nest of saucepans and started wanging on about new thinking on the matter of poached eggs, I was basically role-playing a parent proudly anticipating their child’s next chapter.

The Guardian· 17 Aug 2026

Rapid urban growth across Africa has also played its part, transforming landscapes, and destroying many of the tall trees that the birds nest in.

BBC News· 12 Aug 2026

Etymology 1

From Middle English nest, nist, nyst, from Old English nest, from Proto-West Germanic nest, from Proto-Germanic nestą, from Proto-Indo-European nisdós (“nest”), literally "where [the bird] sits down", a compound of ni (“down”) (whence also English nether) + the zero-grade of the root *sed- (“to sit”) (whence also English sit).

Etymology 2

From Middle English nesten, nisten, from Old English nistan, nistian, from Proto-West Germanic *nistijan (“to nest, build a nest”). Cognate with Saterland Frisian näästje (“to nest”), Dutch nesten (“to nest”), German Low German nüsten (“to nest”), German nisten (“to nest”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin ine-pro *nisdós
Level C1 · Advanced
Frequency Common
Updated