| A | B |
| ambiguous | doubtful or uncertain esp. from begin obscure or indistinct |
| ambiguous | unclear in meaning because of being understandable in more than one way |
| ambient | existing or present on all sides |
| ambivalent | holding opposite feelings and attitudes at the same time toward someone or something |
| ambivalent | continually wavering between opposites or alternate courses of action |
| amphitheater | an oval or circular building with an open area ringed by rising tiers of seats, used in ancient Rome for contests and spectacles |
| amphitheater | a large modern theater or stadium |
| ephemeral | lasting only a day |
| ephemeral | lasting a very short time |
| epiphyte | a plant that obtains its nutrients from the air and the rain and usually grows on another plant for support |
| epitaph | an inscription on a grave or tomb in memory of one buried there |
| epithet | #1. a descriptive word or phrase occurring with or in place of the name of a person or thing #2. an insulting or demeaning word or phrase |