Any of several plants of the genus Dryas; the mountain avens. / One of two periods of cold and increased glaciation thousands of years before the present (Younger Dryas and Older Dryas).

(rail transport, Britain) Initialism of London, Brighton and South Coast Railway.

(science fiction) A disturbance in the flow of time.

A keen-edged knife of peculiar shape, used in shaving the hair from the face or other parts of the body. / Any tool or instrument designed for shaving. / The sharp tusk of a wild boar.