Suletav
Suletav is an Estonian adjective derived from the verb sulgema, meaning to close. It describes something that can be closed or is designed to be closed, functioning as a property of objects, mechanisms, or interfaces. The term is used in everyday language as well as technical or formal registers to indicate closability.
In practice, suletav is applied to a range of nouns, including architectural elements, containers, and software
Morphology and usage: suletav is a participial adjective formed with the suffix -tav from the verb sulgema.
Etymology: the form comes from sulgema (to close) combined with the participial suffix -tav, a common construction
See also: avatav (openable), sulgeda (to close), sulgemismehhanism (closing mechanism).