noun (common) (futsuumeishi) word usually written using kana alone navel;belly button

noun (common) (futsuumeishi) word usually written using kana alone only applies to へそ, ヘソ protrusion or depression in the middle of an object

noun (common) (futsuumeishi) word usually written using kana alone center;centre;most important part;main point

noun (common) (futsuumeishi) bobbin;reel;spool

Heso

expressions (phrases idiomatic expression what a joke!;don't make me laugh!

expressions (phrasesGodan verb with 'su' ending idiomatic expression to split one's sides laughing;to be convulsed with laughter;to boil tea with one's navel (using the heat generated by laughing)