___ number (measure of an object’s speed relative to the speed of sound) Crossword Clue

We have the 4-letter answer for ___ number (measure of an object’s speed relative to the speed of sound) crossword clue, last seen in the New Yorker Crossword February 16, 2026 puzzle. Sometimes we all need some help finding the answer!

___ number (measure of an object’s speed relative to the speed of sound) Crossword Answer

↓51.

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Helpful Hints

(noun)
1. Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916)

Hint 2: Clue Definitions

NUMBER (verb)
1. put into a group
2. determine the number or amount of
NUMBER (noun)
1. one of a series published periodically
2. the property possessed by a sum or total or indefinite quantity of units or individuals
MEASURE (noun)
1. a statute in draft before it becomes law
2. how much there is or how many there are of something that you can quantify
MEASURE (verb)
1. determine the measurements of something or somebody, take measurements of
2. express as a number or measure or quantity

Hint 3: Anagram

Unscramble the letters below to solve for today's answer.
CHAM

More New Yorker Crossword (2/16/2026) Answers

Across

1. Wood-floor covering

4. Word with second or level

9. Type of palm fruit

13. Insist on civility no matter the stakes, say

15. Bone above a dog’s forepaw

16. Unwelcome presence

17. Word on a ground-beef package

18. Caribbean language from which “hammock” and “hurricane” originate

19. Jimi Hendrix was known to set foot on it

21. Permitted to air profane content, perhaps

23. Exchange-rate abbr.

24. “The Ministry of Utmost Happiness” author Arundhati

26. Go up to

29. Likeness

31. Brought together

34. Lack of evolutionary change, in biology

35. Outlook setting?

37. Try hard

38. Honors, so to speak

39. Movie for which Michelle Yeoh won a 2023 Oscar, to fans

40. “The Repast of the Lion” painter Rousseau

41. “___ & Fear” (David Bayles and Ted Orland book about anxieties faced by creatives)

42. It may be worn with a clip

44. Drained

49. Handle in secrecy?

53. Terms for a stay

54. Special-ed aide

55. Debris in a vacuum?

57. Lifeless, in a way

58. Industry that has “not only wrested control of the economy but remade it in its own data-hungry image,” per The New Republic

59. Contents of some cold packs

60. Improvised

61. Possesses

All Answers

Down

1. Film star Saoirse

2. Before but not after

3. Louise : Susan :: Thelma : ___

4. Day on Mars

5. Vehicle that makes bank?

6. Dua who released “Houdini”

7. Shelter on a frozen lake

8. Maryland athletes, informally

9. “Or whare ___ ruin’d castles gray / Nod to the moon”: Robert Burns

10. Brand marketed as a solution to some teen-age insecurities

11. Devices for establishing correspondence

12. British spy novelist Fleming

13. Eponymous vodka magnate Beveridge

14. Way of showing dissatisfaction with a political candidate

20. What I might be replaced by

22. Follow

25. "Wouldn't miss it!"

27. Hibernation station

28. Singer with increasing numbers of albums?

30. Fashion

31. Practice in sex and tattooing

32. Periods of suspense?

33. Vocal showcase

34. Becomes unpleasant

36. Tallboy, e.g.

37. Multitude

40. In a mound

43. 'The gram'

45. Orangey-pink

46. Carb lover’s order, perhaps

47. Ces, across the Pyrenees

48. Does about half the time?

50. Some school volunteers

52. Nymph who loved Narcissus

54. ___ smear

56. Key used to cancel an operation

All Answers