A series of conditions that can lead to a person being drowned: lack of education (about water safety or local conditions), lack of safety advice, lack of protection (such as a flotation device), lack of supervision, and inability to cope (e.g. a weak swimmer in strong currents).

Woodwardia, native to the Northern Hemisphere. / Tmesipteris, native to the South Pacific

A dog collar designed to pinch or squeeze the dog or other animal when the leash is pulled.

(military) The command hierarchy or structure in which one rank obeys the one above it, which obeys the one above it, and so forth.

Alternative form of choke chain

(architecture) A tie consisting of a series of connected iron bars or rods.

A chain made from interlinked loops of coloured paper, used as a hanging decoration.

A chain in which the alternate links are broad blocks connected by thin side links pivoted to the ends of the blocks, used with sprocket wheels to transmit power, as in a bicycle.

(railways) A normally slack chain for preventing excessive movement between a truck and a car body during a slue.

A form of tackle for loading a log sideways on a sled, skidway, etc.