See blot in Webster's New World Roget's A-Z Thesaurus II
noun
A discolored mark made by smearing:
blotch, daub, smear, smirch, smudge, smutch, splotch, stain. See marksA mark of discredit or disgrace:
black eye, blemish, onus, spot, stain, stigma, taint, tarnish. (Archaic) attaint. Idiom: a blot on one's escutcheon. See marks, respect
verb
To remove or invalidate by or as if by running a line through or wiping clean.
Also used with out: annul, cancel, cross (off or out), delete, efface, erase, expunge, obliterate, rub (out), scratch (out), strike (out), undo, wipe (out), x (out). (Law) vacate. See continue
phrasal verb blot outTo destroy all traces of:
abolish, annihilate, clear, eradicate, erase, exterminate, extinguish, extirpate, kill1, liquidate, obliterate, remove, root1 (out or up), rub out, snuff out, stamp out, uproot, wipe out. Idioms: do away with, make an end of, put an end to. See help, make
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