Red keystone Synonyms

Definitions for Red


  • (adjective) having a healthy reddish skin tone
  • (adjective) having a notably high temperature
  • (noun) a person who rises up against authority

Synonyms for phrase

RK abbreviation

RK is an abbreviation for Red Keystone
What does RK stand for?
RK stands for "Red Keystone"

Keystone replaced

Definitions for Keystone


  • (noun) an immaterial thing upon which something else rests
  • (noun) the central building block at the top of an arch or vault
  • (noun) a central cohesive source of support and stability