(British spelling) A medium grey colour with a slight tint of pink or blue, like that of a dove.

(British spelling) Of a medium grey colour with a slight tint of pink or blue, like that of a dove.

Any of various edible fish, of the family Mugilidae, found worldwide in coastal waters and rivers.

A shiny pale grey colour.

Of a shiny pale grey colour.

Ardea cinerea, an Old World wading bird of the heron family.

A pale grey colour, tinted with blue, like that of some pearls.

Of a pale grey colour, tinted with blue, like that of some pearls.

Of a dark grey colour with a tint of blue.

(idiomatic) An area intermediate between two mutually exclusive states or categories, where the border between the two is fuzzy.