Angle mates are like distance mates except you are specifying an angle between two planar faces, planes, or edges. See SolidWorks Help: Angle Mates.

The coincident mate refers to bring two planar surfaces flush or aligned with each other or a surface, edge, or vertex in contact with each other. See SolidWorks Help: Coincident Mate.

Collision Detection helps you make sure that parts in an assembly don't run into each other or to see when components with collide. See SolidWorks Help: Collision Detection.

Concentric mates allow you to align the axis of a curved or cylindrical face with the axis of another. This mate is ideal for aligning holes and other curved faces. See SolidWorks Help: Concentric Mates.

The design library contains many default standard parts that can be used in mechanical design in SolidWorks. You can also add your own standard parts to the design library. See SolidWorks Help: Design Library.

Distance mates allow you to specify a set distance between model faces, edges, or vertices. See SolidWorks Help: Distance Mates.

The axes/centerlines of elements are not aligned.

An exploded view is a view of an assembly with all the parts spread out so that you can see them individually oriented in context of how they fit into the assembly. See SolidWorks Help: Exploded View.

Checks for part models that are taking up the same space in an assembly. See SolidWorks Help: Interference Detection.

Keyboard hotkeys are keys on your keyboard that enable actions without using the mouse such as zoom, menu activation, and commands. See SolidWorks Help: Keyboard Hotkeys.

Instead of setting a distance or an angle, you can specify a limit that the part is free to move within. See SolidWorks Help: Limit Distance and Angles.

Mates are the SolidWorks term for part constraints. They are how one part will constrain to another, much like the sketch constraints/relations you are used to. See SolidWorks Help: Mates.

Mechanical mates are a category of mates that match the interaction and behavior of mechanical components such as gears, cams, hinges, slots, screws, and universal joints. See SolidWorks Help: Mechanical Mates.

Parallel and perpendicular mates are exactly as they sound: they allow you to set faces or edges parallel or perpendicular to each other. See SolidWorks Help: Parallel and Perpendicular Mates.

An automated macro in SolidWorks that determines the best mate for two part entities that are held close to each other while holding ALT. It helps add mates faster. See SolidWorks Help: SmartMates.

The most basic mates such as coincident, concentric, tangent, distance and angle. These are used on the CSWA prevalently. See SolidWorks Help: Standard Mates.

Tangent mates brings at least one cylindrical or curved face or edge in line with another face or edge. See SolidWorks Help: Tangent Mates.

Width mate refers to positioning a pair of planar surfaces centered between another pair of planar surfaces. See SolidWorks Help: Width Mate.