(idiomatic) To arrive rapidly in large groups.

A small, fast boat designed with a long, narrow platform and a planing hull to enable it to reach high speeds.

plural of fast radio burst

(astronomy) A tight band of radio-frequency waves that lasts only a millisecond, which packs the energy of millions of years of Solar output.

plural of fast-breeder reactor

plural of go-fast boat

(idiomatic) To fail to make any progress.

(uncountable) Popular music without any deep meaning.

Alternative form of fast reactor

plural of fast-neutron reactor