Definition of side:
a place within a region identified relative to a center or reference location; "they always sat on the right side of the church"; "he never left my side"
one of two or more contesting groups; "the Confederate side was prepared to attack"
either the left or right half of a body; "he had a pain in his side"
a surface forming part of the outside of an object; "he examined all sides of the crystal"; "dew dripped from the face of the leaf"
an extended outer surface of an object; "he turned the box over to examine the bottom side"; "they painted all four sides of the house"
an aspect of something (as contrasted with some other implied aspect); "he was on the heavy side"; "he is on the purchasing side of the business"; "it brought out his better side"
a line segment forming part of the perimeter of a plane figure; "the hypotenuse of a right triangle is always the longest side"
a family line of descent; "he gets his brains from his father's side"
a lengthwise dressed half of an animal's carcass used for food
an opinion that is held in opposition to another in an argument or dispute; "there are two sides to every question"
an elevated geological formation; "he climbed the steep slope"; "the house was built on the side of a mountain"
(sports) the spin given to a ball by striking it on one side or releasing it with a sharp twist
take sides for or against; "Who are you widing with?"; "I"m siding against the current candidate"
located on a side; "side fences"; "the side porch"