GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 007 abstain (v) To keep oneself back (from doing or using something) abstemious (adj) Characterized by self denial or abstinence, as in the use of drink, food abstinence (n) Self denial abstruse (adj) Dealing with matters difficult to be understood absurd (adj) Inconsistent with reason or common sense abundant (adj) Plentiful abusive (adj) Employing harsh words or ill treatment abut (v) To touch at the end or boundary line