棟 - ridgepole, ridge

ridge (of roof)

(hospital) ward

separate building; outbuilding; outhouse

dormitory building; dormitory hall

suffix for building numbers

renting a whole house; cottage rental

general ward (of a hospital)

terraced or partitioned housing structure

laboratory block; research laboratory building

sign staked to a building's ridgepole at construction time stating the building's donor, builder, date, reason for construction, etc.

hipped roof; hip roof

closed ward; locked ward