peacemaker

noun2

1. •
   A person who restores peace, especially by settling disputes; one who engages in peacemaking.

   • Blessed are the peacemakers: for they shalbe called the chyldren of God. — 1526
2. •
   Catachresis for pacemaker.

   • Indeed, although the activity of the heart depends on the intrinsic rhythm of its peacemaker […] — 2010

noun2

1. •
   An early type of American revolver, especially the Colt 1873 Single Action Army model.
2. •
   The B-36 bomber.