street skating
skating on streets, curbs, benches, handrails and other elements of urban and suburban landscapes. Also ramps, rails, boxes and other man-made obstacles especially in competition are now referred to as street because they simply emulate a perfect street environment, plus the man-made street ramps are mobile, making easy transport for competitions, local skaters and retailers alike.
vert skating
skating on ramps and other vertical structures like empty bowl-shaped swimming pools and occasionally storm drains and such.
half pipe
a U-shaped ramp of any size, usually with a flat section between the opposing transitions.
vert ramp
a transition ramp, usually at least 8 feet tall, with steep sides that are perfectly vertical near the top.
mini ramp
usually a half pipe, similar to a vert ramp, but not tall enough for the transition to reach vertical.
quarter-pipe
a single ramp transitioning from horizontal(entry point) to any obtuse angle up to vert.
bowl empty
in-ground pools serve as good bowls. Concrete and wood bowls have been made for skating. As with a half pipe, a bowl is better with a flat bottom between the transitions.