In LOR, there are 3 types of ways movement can be considered
Standard movement, this refers to normal movemeny that involves walking or running as a normal creature would
Dash involves an incredibly fast movement that borderlines on unnatural. This usually is short burst of speed
Dash takes into account difficult terrain and requires at least half the dash distance to have solid ground.
Dash unless stated otherwise requires you to use the full movement unless stated otherwise.
When you dash, you do not provoke reactions and can move through objects equal or smaller than you.
Teleport refers to usually magical ability to instantly move from area to another.