at one blow

at one blow (not comparable)

1. With one strike (of a hand, tool, or weapon).
   • 1884 [before 1557], Jacob Grimm, Wilhelm Grimm, Margaret Hunt, editors, The Valiant Little Tailor [European folk tale] (Grimm's Household Tales; 1):

     'There is no lack of strength,' answered the little tailor. 'Dost thou think that could be anything to a man who has struck down seven at one blow?'

   • 1960 February, “Motive Power Miscellany: London Midland Region”, in Trains Illustrated, page 115:

     [...] also notable is the condemnation of all but one of the nine Stanier 0-4-4 tanks at one blow.

• at one blast
• at one stroke

• “at one blow”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.