[sahyd] 
noun, adjective, verb, sid⋅ed, sid⋅ing.| 1. | one of the surfaces forming the outside of or bounding a thing, or one of the lines bounding a geometric figure. |
| 2. | either of the two broad surfaces of a thin, flat object, as a door, a piece of paper, etc. |
| 3. | one of the lateral surfaces of an object, as opposed to the front, back, top, and bottom. |
| 4. | either of the two lateral parts or areas of a thing: the right side and the left side. |
| 5. | either lateral half of the body, esp. of the trunk, of a human or animal. |
| 6. | the dressed, lengthwise half of an animal's body, as of beef or pork, used for food. |
| 7. | an aspect or phase, esp. as contrasted with another aspect or phase: to consider all sides of a problem. |
| 8. | region, direction, or position with reference to a central line, space, or point: the east side of a city. |
| 9. | a slope, as of a hill. |
| 10. | one of two or more contesting teams, groups, parties, etc.: Our side won the baseball game. |
| 11. | the position, course, or part of a person or group opposing another: I am on your side in this issue. |
| 12. | line of descent through either the father or the mother: grandparents on one's maternal side. |
| 13. | the space immediately adjacent to something or someone indicated: Stand at my side. |
| 14. | Informal. a side dish, as in a restaurant: I'll have a hamburger and a side of French fries. |
| 15. | Usually, sides. Theater.
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| 16. | Nautical. the hull portion that is normally out of the water, located between the stem and stern to port or starboard. |
| 17. | Billiards. English (def. 8). |
| 18. | Slang. a phonograph record. |
| 19. | Chiefly British Slang.
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| 20. | on the (specified) side, rather more than less; tending toward (the quality or condition specified): This cake is a little on the sweet side. |
| 21. | being at or on one side: the side aisles of a theater. |
| 22. | coming from one side. |
| 23. | directed toward one side: a side blow. |
| 24. | subordinate or incidental: a side issue. |
| 25. | side with or against, to favor or support or refuse to support one group, opinion, etc., against opposition; take sides, as in a dispute: He always sides with the underdog. |
| 26. | on the side, Informal.
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| 27. | side by side,
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| 28. | take sides, to give one's support to one person or group in a dispute; be partial to one side: We were careful not to take sides for fear of getting personally involved. |
| 29. | the far side, the farther or opposite side: the far side of the moon. |
side against
Refuse to support, oppose in a dispute, as in The older club members sided against the new program director and her strenuous exercise programs. [First half of 1700s] For the antonym, see side with.