Any of the crabs of the genus Calappa.

Alternative spelling of post box

Alternative spelling of letter box

plural of letter-box

plural of post-box

(Australia) Any of various eucalyptus trees, especially Eucalyptus melliodora of southeastern Australia.

plural of toby box

A box containing fibre optic microducts etc., set into the street ready for connection to a property.

plural of dust box

(nautical) A perforated box attached to the input pipe of a bilge pump, to trap any solid material that might otherwise clog the pump.