marble

noun

• 1 [mass noun] a hard crystalline metamorphic form of limestone, typically white with coloured mottlings or streaks, which may be polished and is used in sculpture and architecture: the spotless white marble of the Taj Mahal [as modifier]:a marble floor
• used figuratively to refer to something with the smoothness, hardness, or colour of marble:her shoulders were as white as marble
• [count noun] a marble sculpture: a pair of dramatic marbles showing dogs attacking a buck

• 2a small ball of coloured glass or similar material used as a toy.
• (marbles) [treated as singular] a game in which marbles are rolled along the ground with the aim of hitting those of one’s opponent: a couple of girls were playing marbles

• 3 (one's marbles) informal one’s mental faculties:I thought she’d lost her marbles, asking a question like that

verb

• stain or streak (something) so that it looks like marble:the stone walls were marbled with moss and lichen