English

Verb

uncock ‎(third-person singular simple present uncocks, present participle uncocking, simple past and past participle uncocked)

1. To straighten or flatten (remove a cocked shape)

   to uncock a hat

2. (transitive) To let down the cock of (a firearm).
   • 1884: Mark Twain, The Adventures of Huckleberry Finn, Chapter VIII

     My heart jumped up amongst my lungs. I never waited for to look further, but uncocked my gun and went sneaking back on my tiptoes as fast as ever I could.

   • 1844, Alexandre Dumas (translated by William Robson), The Three Musketeers Chapter 27

     And d'Artagnan set the example. Then, turning toward Planchet, he made him a sign to uncock his musketoon. The Englishmen, convinced of these peaceful proceedings, sheathed their swords grumblingly.

3. To open or spread from a cock or heap, as hay.

Antonyms

(let down the cock):

• cock