Real Dictionary

side
a line or surface that borders anything [...]
A side of beef, bacon, or other meat consists of the meat from half the animal cut along its backbone.
If someone is by your side or at your side, they stay near you and give you comfort or support.
Side is used to describe things that are not the main or most important ones of their kind.
the act of scattering [...]
The side of an object, building, or vehicle is any of its flat surfaces which is not considered to be its front, its back, its top, or its bottom.
Your sides are the parts of your body between your front and your back, from under your arms to your hips.
countable noun: If you talk about the other side of a town or of the world, you mean a part of the town or of the world that is very far from where you are.
countable noun: In sport, a side is a team.
countable noun: One side of a tape or record is what you can hear or record if you play the tape or record from beginning to end without turning it over.
countable noun: The different sides in a war, argument, or negotiation are the groups of people who are opposing each other.
countable noun: The different sides of an argument or deal are the different points of view or positions involved in it.
countable noun: The side of something is a position to the left or right of it, rather than in front of it, behind it, or on it.
countable noun: The sides of a hollow or a container are its inside vertical surfaces.
countable noun: The sides of an area or surface are its edges.
countable noun: The two sides of a road are its two halves on which traffic travels in opposite directions.
countable noun: The two sides of an area, surface, or object are its two halves.
countable noun: The two sides of something flat, for example a piece of paper, are its two flat surfaces. You can also refer to one side of a piece of paper filled with writing as one side of writing.
verb: If one person or country sides with another, they support them in an argument or a war. If people or countries side against another person or country, they support each other against them.