Ships come in all kinds of forms. Platonic ships, romantic ships, hate ships, crack ships, etc. Pretty much just in the same way (apart from crack ships of course) that many forms of relationships exist in real life. For the uninitiated, here's what you need to know:
Types of Canon
|[Animated Image: Zoe Washburne from the TV show Firefly kissing her husband|
Hoban 'Wash' Washburne on the cheek as she tucks his napkin in the neckband
of his shirt.]
|[Image: JD and Turk from Scrubs looking|
at each other and smiling lovingly.]
OT3+: like OTPs but with more than two people in the relationship. For example, I kind of ship Isabela, FemHawke and Varric.
BrOTP: Platonic friendship between guys to the point that they're as close as brothers, or perhaps even closer without being a romantic or sexual relationship. Think Turk and JD in Scrubs.