A house is a single-unit residential building, which may range in complexity from a rudimentary hut to a complex structure of wood, masonry, concrete or other material, outfitted with plumbing, electrical, and heating, ventilation, and air conditioning systems. Houses use a range of different roofing systems to keep precipitation such as rain from getting into the dwelling space. Houses may have doors or locks to secure the dwelling space and protect its inhabitants and contents from burglars or other trespassers.

Evening is the period of a day from the end of the afternoon to the beginning of night. The exact times when evening begins and ends depend on location, time of year, and culture, but it is generally regarded as beginning when the Sun is low in the sky and lasting until the end of twilight.