Massive keystone Synonyms

Definitions for Massive


  • (adjective) having great weight
  • (adjective) unusually large
  • (adjective) large and impressive in size, grandeur, extent, or conception

Synonyms for phrase

MK abbreviation

MK is an abbreviation for Massive Keystone
What does MK stand for?
MK stands for "Massive 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