[ sing-guhl-ak-shuhn ]

  1. (of a firearm) requiring the cocking of the hammer before firing each shot: a single-action revolver.

Origin of single-action

First recorded in 1850–55

Words Nearby single-action Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use single-action in a sentence

  • On the contrary, single-action reels are made of rather numerous materials and certainly in varying degrees of desirability.

  • It is taken for granted in the above discussion, and also in the following, that the fly-caster uses a single-action reel.

British Dictionary definitions for single-action


  1. (modifier) (of a firearm) requiring the hammer to be cocked by hand before firing

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012