Words / A2

SPEED/spiːd/

Speed is how fast something moves: high speed, at a speed of, speed limit. It is usually uncountable: speed, not “a speed” unless you mean a particular rate: at a speed of 50 miles per hour. Fast is the adjective; quickly is the adverb. Velocity is a science word. Do not say “the speed is fast” — say the speed is high, or it is going fast.

Meaning

How fast something moves.

Examples

• “The car was travelling at a high speed.”
• “The speed limit on this road is thirty.”
• “Trains travel at high speed between the two cities.”

Good to know

at high speed / a speed of + number. speed limit. Adjective: fast. Not “the speed is fast.”

New