A distinction, particularity, or distinguishing feature.
A crisis or turning point; A situation that changes how the future will unfold.
A pattern or organizing principle that forms the basis of moral judgements.
A visible dividing line where two structures come together.
A peculiarity that serves to distinguish or identify.
A peculiar individual reaction to a generally innocuous substance or factor.
A language or behaviour that is particular to an individual or group.
A behavior or way of thinking that is characteristic of a person.