Meaning & use

annex building

noun·Everyday

Last updated

UK/ˈæneks ˌbɪldɪŋ/
US/ˈæneks ˌbɪldɪŋ/

Meaning

  1. nouncountable

    A building that is added to or near a main building and used as an extra part of it.

    Grammar: Countable noun: you can say 'an annex building' or 'annex buildings'.

    Patterns

    • annex building to something
    • annex building of something

    The library's rare books are kept in a separate annex building behind the main library.

    The company rented an annex building to house its growing staff.

Word forms

pluralannex buildings

Common combinations

annex building to the main building
The annex building to the main building is connected by a covered walkway.
a small annex building
They converted a small annex building into a café.
the annex building of a hospital
The annex building of the hospital houses the outpatient clinic.

Synonyms and how they differ

extension
An extension is usually a new part added to an existing building, while an annex building is often a separate structure nearby.
wing
A wing is a part of the same building that sticks out, not a separate building.

Word family

annex noun
A building added to a larger one; also a verb meaning to take territory.
annexation noun
The act of adding something, especially territory.

Commonly confused: annex building or annexe?

annex building vs annexe

British spelling of the same word; 'annex' is more common in American English.

Practice

The new staff offices are in a(n) ______ building next to the main hospital.

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