olemus
kontekstist sõltuv ruumilise ala osa, mitte tingimata hooneosa
=
a context-dependent space with limited entry and egress

näiteid
https://duckduckgo.com/?q=enclosed+space&t=h_&iar=images&iax=images&ia=images

https://www.lawinsider.com/dictionary/enclosed-space

https://en.wikipedia.org/wiki/Confined_space