simple past tense and past participle of speed up

present participle of speed up

(sports) a winter sport, a combination of speed flying (a variant of paragliding) and paraskiing (a combination of paragliding and skiing)

(sports) an air sport, a variant of paragliding, focusing on high speed passes skimming close to the ground and terrain features

plural of speed bag

(boxing) A small air-filled punching bag anchored at the top to a rebound platform parallel to the ground.

power walking

(idiomatic) Someone who runs, drives or moves in a given way very fast.

(music) A genre of heavy metal characterized by an extremely swift, rhythmic style.

Third-person singular simple present indicative form of speed-dial