General definition:
"On-sight": Do not know the climbing information of this route beforehand, climbed the route for the first time without climbing successfully.
Climbing a route for the first time and not falling, without having been giving any previous information concerning the route.
"Redpoint": Climb the route beforehand and climb the route without a crash by a pioneer.
To successfully climb a route on lead, without falling, after practice or rehearsal of required sequence.
More rigorous definition:
"On-sight": The definition is the same as above.
"Redpoint": The definition is the same as above.
To lead a route, clipping protection as you go, without falling or resting on pro.
"Flash": Define the same as on-sight. You must hang the buckle on your own. You can know the climbing information beforehand (for example, if someone climbs and asks others how to climb).
To climb a route first try without ever having touched the route, but with the aid of beta.
"Pinkpoint": The definition is the same as on-sight. The quick buckle has been hung on the top, just hang the rope into the buckle.
To lead (without falling) a climb that has been pre-protected with anchors rigged with carabiners.
other:
"Hangdogging": In the middle of a climbing route, the rope is used to rest.
"Climbing" a route, usuallying bolt to bolt, with the aid of the rope to hang and rest.
When a leader hangs from a piece of protection to rest, then continues on without lowering back to the ground; not a free ascent.
References:
Eric J. Horst, "How to climb 5.12", 1997
Heather Reynolds Sagar, "Climbing your Best", 2001
John Long, "How to Rock Climb!", 1998
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