Question

What is the difference between quickly and faster?

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Answer 1

Answer:

Fast refers to speed, and quickly refers to time.

Answer 2

Answer:

Fast refers to speed, and quickly refers to time.

Strictly speaking, fast is an adjective while quickly is an adverb. Fast refers to speed, and quickly refers to time.

For example:

‘That car is very fast.’

‘The car quickly pulled over.’

The confusion arises because American English speakers have no qualms about using fast as an adverb. British English speakers, however, tend to avoid that usage.