Meaning of SPEED UP in English

SPEED UP

speed up phrasal verb ( see also ↑ speed )

to move or happen faster, or to make something move or happen faster OPP slow down :

The truck speeded up going down the hill.

speed something ↔ up

The new system will speed up the registration process.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.