The meaning of the Acronym RK is...

RK is

• Roundhouse Kick
• Rally Killer
• Red King

More Meanings For RK:

• Resource Kernel
• Runge-Kutta
• Royal Knight
• Road Kill
• Rainbow Kandy
• Roobahe Koor
• Remy Korea
• Rob Knob
• Rat King
• Retro Kid
• Real Krap
• Rice Krispy
• Razorblade Kitten
• Rear Kitchen
• Rajini Kanth

RK is also in:

• Awards & Medals
• Food
• General
• Mathematics
• Unfiled