| 1. | on the inner side or part of; within: inside the circle; inside the envelope. |
| 2. | prior to the elapse of; within: He promised to arrive inside an hour. |
| 3. | in or into the inner part: Please go inside. |
| 4. | indoors: They play inside on rainy days. |
| 5. | within one's heart, reason, etc.; by true nature; basically: I know inside that he's not guilty. Inside, she's really very shy. |
| 6. | Slang. in prison. |
| 7. | the inner or internal part; interior: the inside of the house. |
| 8. | the inner side or surface: the inside of the hand; He pinned the money to the inside of his jacket. |
| 9. | Usually, insides. Informal. the inner parts of the body, esp. the stomach and intestines: The coffee scalded my insides. |
| 10. | a select or inner circle of power, prestige, etc.: a man on the inside. |
| 11. | the shortest of several parallel, curving tracks or lanes; the part of an oval track closest to the inner rail: The horse came up fast on the inside. |
| 12. | the inward nature, mind, feelings, etc. |
| 13. | Slang. confidential or secret information. |
| 14. | an inside passenger or place in a coach, carriage, etc. |
| 15. | situated or being on or in the inside; interior; internal: an inside seat. |
| 16. | acting, employed, done, or originating within a building or place: He used to work on the dock but now he has an inside job. |
| 17. | derived from the inner circle of those concerned in and having private knowledge of a situation: inside information. |
| 18. | Baseball. (of a pitched ball) passing between home plate and the batter: The pitch was low and inside. |
| 19. | inside of, Informal. within the space or period of: Our car broke down again inside of a mile. |
| 20. | inside out,
|
| inside of prep. Within; inside. |
inside of
Within, in less than the whole of, referring especially to a period of time. For example, They promised to return it inside of a month. Although some authorities believe inside alone conveys the same meaning, the full term is widely used. [Early 1800s]