English Reference
adjective · noun

swift

adj. · n.
US /ˈswɪft/ UK /swˈɪft/ swift UK spelling swifts

  1. 01 B2 Upper Intermediate Literary

    adj.moving or happening very quickly.

    adj.characterised by great speed, velocity, or rapidity of action.

    Simple

    The company took swift action to fix the problem before customers complained.

    In context

    The government's swift response to the economic crisis prevented a total collapse of the banking sector during the winter months.

  2. 02 C1 Advanced Technical Computing

    n.a modern computer language created by Apple for making apps.

    n.a general-purpose, multi-paradigm compiled programming language developed by Apple Inc. for iOS, macOS, and other platforms.

    Simple

    He decided to learn Swift so he could build his own iPhone apps.

    In context

    The developer migrated the legacy codebase to Swift to take advantage of its superior memory safety and performance features.

He believes the government's response hasn't been swift enough.

BBC News· 17 Aug 2026

Five years on, there are no simple or swift solutions.

BBC News· 14 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Common
Updated