sisekülge
Sisekülge is a term used in Estonian to describe the inside of something, or the interior. It can refer to the inner surface of an object, the internal workings of a mechanism, or the private thoughts and feelings of a person. The word is derived from "sise," meaning "inner" or "internal," and "külg," meaning "side" or "flank."
In a physical context, sisekülge might describe the interior of a house, the lining of a garment,