Here are the possible solutions for what's sign clue
Answer
Clue
Relevancy
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
