11.   In it, McFerrin leads a group of singers in improvisational songs that create beautiful and haunting harmonies using sounds on the cusp of language.

12.   In punning, the homophonic trick is to use one sound to carry two meanings.

13.   Many cetaceans also use sound to echolocate.

14.   Monsters will duck behind boxes and pillars to avoid your fire, or use sound to track your movements.

15.   Once locked inside, the employees spend about three hours creating digital recordings of a word list carefully crafted to reflect how phonetic sounds are used in English speech.

16.   One remedy is to use sound as a distraction.

17.   Q. How do dolphins use sound to communicate?

18.   Seismic devices use sound to map geological deposits during the search for oil.

19.   Seismic equipment uses sound to map gas and oil fields and determine the most likely locations for drilling wells.

20.   She uses sounds ranging from romantic pop songs to cacophonic clangor.