Belly
New TestamentVine's Expository Dictionary of Biblical Words
Definition
1koiliaG2836
from koilos, "hollow" (Lat., coelum, "heaven," is connected), denotes the entire physical cavity, but most frequently was used to denote "the womb." In Joh 7:38 it stands metaphorically for the innermost part of man, the soul, the heart. See WOMB.
2gasterG1064
(cp. Eng., "gastritis"), is used much as No. 1, but in Tit 1:12, by synecdoche (a figure of speech in which the part is put for the whole, or vice versa), it is used to denote "gluttons," RV, for AV, "bellies." See GLUTTON, WOMB.