NPR Weekend Edition Sunday Puzzle

April 30, 2021

Joe Becker

Presented by Will Shortz 

The "zh" sound can be spelled in many different ways in English. The s in measure, the g in beige, the z in azure, the j in maharajah, the x in luxury. The "zh" sound can also be spelled with a "t" in one instance. We know only one common word this is true of, not counting its derivatives. What word is it?

Answer:

 

EQUATION