| OAS |
abbreviation of "Organization of American States." |
| oasis |
an area of vegetation in the midst of a desert, fed by a spring or well. [2 definitions] |
| oast |
a kiln used for drying and curing tobacco or for drying hops or malt. |
| oat |
(usu. pl.; used with a sing. or pl. verb) a grain plant widely raised in cool climates, or any of several similar plants. [2 definitions] |
| oatcake |
a thin, flat, brittle cake made of oatmeal. |
| oath |
a solemn pledge to do something, esp. a promise to tell the truth, as in a court of law. [4 definitions] |
| oatmeal |
meal made by grinding or rolling oats. [2 definitions] |
| ob- |
to; toward; before. [4 definitions] |
| Obadiah |
according to the Old Testament, a minor Hebrew prophet. [2 definitions] |
| obbligato |
not to be left out; obligatory (used of a musical part or accompaniment that is considered prominent but usu. ornamental). [2 definitions] |
| obdurate |
unpersuadable through logic, pity, or sentiment; unyielding. [2 definitions] |
| obedience |
the condition or quality of being dutiful and obedient. [2 definitions] |
| obedient |
obeying, or being willing to obey, rules, commands, or requests. |
| obeisance |
a gesture of the body, such as a bow, made to indicate respect or submission. [2 definitions] |
| obelisk |
a tall stone shaft with four inclined sides and a pyramid-shaped point at the top. [2 definitions] |
| Oberon |
in medieval English folklore and A Midsummer Night's Dream by William Shakespeare, the king of the fairies and the husband of Titania. |
| obese |
exceedingly and unhealthily overweight; corpulent. |
| obesity |
the condition of being obese. |
| obey |
to follow or carry out the command, instruction, or wishes of (someone). [4 definitions] |
| obfuscate |
to make (something) seem or be difficult to understand; obscure or darken. [2 definitions] |
| OB-GYN |
abbreviation of "obstetrics-gynecology." [2 definitions] |