(n): an area within a building enclosed by walls and floor and ceiling
(n): small individual study area in a library
(n): a small recess opening off a larger room
(n): small area set off by walls for special use
(n): a small private room for study or prayer
Are you a nun, chained_bear?
Dating back to the 1400s, this word stemmed from the Latin cubiculum, meaning "sleeping area" (completely apropos). It became obsolete after the 16th century, but it was revived in the 19th century as a word for "dormitory sleeping compartments." Its use as any partitioned space didn’t surface until the 1920s.