sprung floor
n.— «One of the cooler aspects of this new auxiliary gym is it has what’s called a “sprung floor,” which helps takes the stress off of people’s legs while they’re here playing basketball or volleyball.» —“Inside the Phoenix’s New Fitness Center” by Adam Aaro WBAy-TV (Green Bay, Wisconsin) Sept. 19, 2007. (source: Double-Tongued Dictionary)
Further reading
Default as a noun and default as a verb are the same word, with a familiar English stress shift: nouns often take first-syllable stress, while verbs often take second-syllable stress, as with the different pronunciations of record. A New York City...
If you mistype something, that’s a typo. But what do you call it when your voice-to-text program mistypes as you’re dictating? Is that a mico, as in microphone? Plus, the word sycophant has a long and surprising history that goes all the way back to...