Alligator:A busted piece of truck tire in the road.
Cage: A vehicle with four or more wheels.
Closing Speed: the combined speed of two vehicles heading at each other.
Conspicuity: easy to see
Crash Causation: The action or inaction that causes a crash.
Evasion: avoiding a crash once it has been caused.
Mitigation: reducing the hurt of a crash.
Retread: A biker coming back to riding after not riding for some years.
SEE - See, Evaluate, Execute, the MSF riding strategy.
T-CLOCS: the recommended MSF pre-ride bike checklist