fastbeginning

noun
UK /ˌfɑːst bɪˈɡɪnɪŋ/
US /ˌfæst bɪˈɡɪnɪŋ/

A fast beginning is when something starts very quickly.

The race had a fast beginning, and the runners were gone in a flash.


OTHER MEANINGS

2. The first part of an event that happens sooner than expected.

Because of the fast beginning, the concert was over before dark.

3. A sudden quick start to a race or game.

The swimmers practiced a fast beginning off the blocks.

4. A quick first step in learning or doing something.

Her fast beginning in math gave her confidence for the whole year.