a very small spot; a small piece of dirt, etc. The ship was now just a speck in the distance. specks of dust Synonymsmarkstain fingerprint streak speck blot smear spotThese are all words for a small area of dirt or another substance on a surface.mark a small area of dirt or other substance on the surface of something, especially one that spoils its appearance:The kids left dirty marks all over the kitchen floor.stain a dirty mark on something that is difficult to remove, especially one made by a liquid:blood stainsfingerprint a mark on a surface made by the pattern of lines on the end of a person’s finger, often used by the police to identify criminals:Her fingerprints were all over the gun.streak a long thin mark or line that is a different colour from the surface it is on:She had streaks of grey in her hair.speck a very small mark, spot or piece of a substance on something:There isn’t a speck of dust anywhere in the house.blot a spot or dirty mark left on something by a substance such as ink or paint being dropped on a surfacesmear a mark made by something such as oil or paint being spread or rubbed on a surfacespot a small dirty mark on something:There were grease spots all over the walls.Patterns a streak/speck/blot/smear/spot of something a greasy mark/stain/smear an ink mark/stain/blot/spot a grease mark/stain/spot to leave a mark/stain/fingerprint/streak/speck/blot/smear Word Origin Old English specca; compare with the noun speckle.Extra examples Specks of grease spotted the walls. The bird has reddish specks on its breast. There isn’t a speck of dust anywhere in the house. There wasn’t a speck of dirt anywhere.