The totality of living organisms and their environment.
The part of the Earth and its atmosphere capable of supporting life.
The set of settings related to the language and region in which a computer program executes. Examples are language, currency and time formats, character encoding etc.
A partially ordered set with the following additional axiomatic properties: any finite subset of it has a meet, any arbitrary subset of it has a join, and distributivity, which states that a binary meet distributes with respect to an arbitrary join. (Note: locales are just like frames except that the category of locales is opposite to the category of frames.)
The place where something happens.