ef

efface (v.) to wipe out, obliterate, rub away (The husband was so angry at his wife for leaving him that he effaced all evidence of her presence; he threw out pictures of her and gave away all her belongings.)

effervescent (adj.) bubbly, lively (My friend is so effervescent that she makes everyone smile.)

efficacious (adj.) effective (My doctor promised me that the cold medicine was efficacious, but I’m still sniffling.)

effrontery (n.) impudence, nerve, insolence (When I told my aunt that she was boring, my mother scolded me for my effrontery.)

effulgent (adj.) radiant, splendorous (The golden palace was effulgent.)