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efface is a verb meaning "remove completely from recognition or memory". It carries 3 recorded senses.
remove completely from recognition or memory
“efface the memory of the time in the camps”
remove by or as if by rubbing or erasing
“Please erase the formula on the blackboard--it is wrong!”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for efface come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.