a small piece of material put over a hole or a damaged or worn place
piece, spot, area
Cases of word usage
1) s group of very distant stars, mass of gas, seen in the night sky as a patch of light (nebula)
2) a dirty mark or patch of colour; a moral defect; (to cause something) to change colour, make coloured patches or dirty marks on (something) (stain)
3) a piece of false hair worn to cover a bald patch (toupee)
