a drop of liquid e.g. plant, colour

drop, spot

(any kind of) coloured liquid used for writing and printing

blemish; character

a line, scratch, cut, stain etc that spoils the appearance of something; a sign or indication

blemish; character

a very small sport or piece (of dirt etc); a small visible spot

tiny bit

a dirty mark or patch of colour; a moral defect; (to cause something) to change colour, make coloured patches or dirty marks on (something)

spot of dirt, blot, bar