Etymology: Middle English, from Old English sīde; akin to Old High German sīta side, Old English sīd ample, wide
Date: before 12th century
a. the right or left part of the wall or trunk of the body <a pain in the side> b. (1) one of the halves of the animal body on either side of the median plane (2) a cut of meat including that about the ribs of one half of the body — used chiefly of smoked pork products c. one longitudinal half of a hide 2. a place, space, or direction with respect to a center or to a line of division (as of an aisle, river, or street) 3. a. one of the longer bounding surfaces or lines of an object especially contrasted with the ends <the side of a barn> b. a line or surface forming a border or face of an object <a die has six sides> <the back side of the moon> c. either surface of a thin object <one side of a record> <right side of the cloth> d. a bounding line of a geometric figure <side of a triangle> 4. a. the space beside one <stood by my side> b. an area next to something — usually used in combination <a poolside interview> 5. a slope (as of a hill) considered as opposed to another slope <the far side of the hill> 6. a. the attitude or activity of one person or group with respect to another ; part <there was no malice on my side> b. a position that is opposite to or contrasted with another <two sides to every question> <came down on the side of law and order> c. a body of partisans or contestants <victory for neither side> d. team 4a <11 players on each side>; also the players on a baseball team batting in an inning <struck out the side> 7. a line of descent traced through one's parent <grandfather on his mother's side> 8. an aspect or part of something contrasted with some other real or implied aspect or part <the better side of his nature> <the sales side of the business> <the seasoning is a bit on the heavy side> 9. British sideways spin imparted to a billiard or snooker ball 10. a sheet containing the lines and cues for a single theatrical role 11. a recording of music 12. a side order or dish <a side of fries> II. adjective Date: 14th century 1. a. situated on the side <side window> b. of or relating to the side 2. a. directed toward or from the side <side thrust> <side wind> b. incidental, indirect <side issue> <side remark> c. made on the side <side payment> d. additional to the main portion <a side order of french fries> III. verb (sided; siding) Date: 1591 transitive verb 1. to agree with ; support 2. to be side by side with 3. to set or put aside ; clear away <side the dishes> 4. to furnish with sides or siding <side a house> intransitive verb to take sides ; join or form sides <sided with the rebels> IV. noun Etymology: obsolete English side proud, boastful Date: 1878 chiefly British swaggering or arrogant manner ; pretentiousness
New Collegiate Dictionary. 2001.