õõnsuse

õõnsuse is an Estonian word that translates to "cavity" or "hollow" in English. It generally refers to an empty space within a solid object or mass. The term can be applied in various contexts, from natural formations to manufactured objects and even abstract concepts.

In geology, an õõnsus might describe a void within a rock, such as a geode or a cave. In anatomy, it can refer to a natural hollow within the body, like the nasal cavity or the thoracic cavity. In engineering and construction, an õõnsus could be a deliberately created empty space within a wall or structure, often for insulation or to house utilities. The term is also used in dentistry to describe a decayed area in a tooth that requires filling. More broadly, õõnsus can signify a lack of substance or content, a metaphorical emptiness. The specific meaning is usually inferred from the surrounding context.