GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 033 ambulance (n) A vehicle fitted for conveying the sick and wounded ambulate (v) To walk about ambush (n) The act or state of lying concealed for the purpose of surprising or attacking the enemy ameliorate (v) To relieve, as from pain or hardship amenable (adj) Willing and ready to submit amendment (n) a positive change Americanism (n) A peculiar sense in which an English word or phrase is used in the United States amiable (adj) friendly