Here are the possible solutions for sign of speed clue
Answer
Clue
Relevancy
asimov
Clue
Writer who said "I am not a speed reader. I am a speed understander"
limit
Clue
Speed ___ 65 (phrase on a road sign)
Speed ___ (number on a highway sign)
Definition
to restrict
streak
Clue
Sign of speed
omen
Clue
Good sign or bad sign
Definition
to provide with a prophetic sign
ptomaineconcourse
Clue
Warning sign at a train station's food court? (NOTE: The original sign, without my additions, actually exists. It's in Grand Central Terminal in NYC, on the lower level — the food court level. The sig
