| rare |
| 1. adj. Very uncommon; scarce. | |
| Black pearls are very rare and therefore very valuable. | |
| 2. adj. (of a gas) Thin; of low density. | |
| 3. adj. (cooking, particularly meats) Cooked very lightly, so the meat is still red (in the case of steak or beef in the general sense). | |
| 4. v. (US, intransitive) To rear, rise up, start backwards. | |
| 5. v. (US, transitive) To rear, bring up, raise. | |
| 6. adj. (obsolete) early | |
| obsolete |
| 1. adj. (of words, equipment, etc.) No longer in use; gone into disuse; disused or neglected (often by preference for something newer, which replaces the subject). | |
| It is speculated that, within a few years, the Internet's speedy delivery of news worldwide will make newspapers obsolete. | |
| 2. adj. (biology) Imperfectly developed; not very distinct. | |
| 3. v. (transitive, US) To cause to become obsolete. | |
| This software component has been obsoleted. | |
| We are in the process of obsoleting this product. | |
| four |
| 1. num. (cardinal) A numerical value equal to 4; the number after three and before five; two plus two. This many dots (••••) | |
| There are four seasons: winter, spring, summer and autumn. | |
| 2. num. Describing a set or group with four elements. | |
| 3. n. The digit or figure 4; an occurrence thereof. | |
| 4. n. Anything measuring four units, as length. | |
| Do you have any more fours? I want to make this a little taller. | |
| 5. n. A person who is four years old. | |
| I'll take the threes, fours and fives and go to the playground. | |
| 6. n. (cricket) An event whereby a batsman hits a ball which bounces on the ground before passing over a boundary in the air, resulting in an award of 4 runs for the batting team. If the ball does not bounc | |
| 7. n. (basketball) A power forward. | |
| 8. n. (rowing) Quadruple sculls. | |
| 9. n. (obsolete) A four-pennyworth of spirits. | |
