smudge
smudge
verb
To make a dirty mark or smear on something, often accidentally.
"Be careful not to smudge the paint."
noun
A dirty mark or smear, often caused by rubbing or contact.
"There was a smudge on the window."
Thesaurus
Synonyms: blot, slur, smear, daub, smirch, spot, blur, smutch