“circumstance”

Because.

Supposing that, assuming that, in the circumstances that; suppositive used to introduce a condition that may be (or prove to be) either true or false.

Which, especially which of an open-ended set of possibilities.

At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.

Something that could happen, or could be the case, under different circumstances; a potentiality.

At no time; on no occasion; in no circumstance.

A condition; a set of circumstances applying at any given time.

The circumstances of a certain time.

To want (something) to happen, with a sense of expectation that it might [with that (+ clause); or (informal) with clause; or with so or (negative) not].

Something actual as opposed to invented.

A difficulty that has to be resolved or dealt with.

On some occasions, over some periods, or in certain circumstances, but not always.

To proceed, spring up or rise, as a consequence, from facts, arguments, premises, combination of circumstances, consultation, thought or endeavor.

When situated in a foreign place, it is wise to follow the local customs.