Strong's Concordance G2785

Original Word: κῆτος
Transliteration: kētos
Phonetic Spelling: kay'-tos
[κῆτος] probably from the base of G5490; a huge fish (as gaping for prey)

Usages throughout the bible

Matthew 12:40 - For as Jonas was three days and three nights in the whale's G2785 belly; so shall the Son of man be three days and three nights in the heart of the earth.