___ 1 (the speed of sound) crossword clue is part of Crosswords With Friends December 15 2023. There are different types of answers for ___ 1 (the speed of sound) but we have posted the correct one that will let you continue to solve other Crosswords With Friends December 15 2023 crossword clues.
___ 1 (the speed of sound)
SOLUTION:MACH