A volcanic island in Japan’s Ogasawara Islands chain, officially called Iōtō in Japanese.

A surname from Italian.

(organic chemistry) The alkaloid (1R,6R,7S,9R,11R)-1',6,10,10,13-pentamethylspiro[3,13-diazatetracyclo[5.5.2.01,9.03,7]tetradecane-11,3'-pyrrolidine]-2',5',14-trione present in Aspergillus japonicus

(countable) The sound of water boiling on a hot surface. / (countable, informal) The process of being cooked which involves that sound. / (uncountable) Zing, zip, or pizazz; excitement.