As soon as possible vs Quickly

When to use each in English, with meaning, register, and examples.

As soon as possible

Top 2,000 (common)

Quickly

Top 1,000 (very common)A1adverb
Most common: Quickly
 As soon as possibleQuickly
Pronunciation🇬🇧 //æz suːn æz ˈpɒsəbl//🇺🇸 //æz suːn æz ˈpɑːsəbl//🇬🇧 /["/ˈkwɪkli/"]/🇺🇸 /["/ˈkwɪkli/"]/
MeaningDo something quickly or without delay.In a fast manner
ExamplePlease submit your report as soon as possible so we can review it.She ran quickly to catch the bus.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-A1
Part of speechadverb
Collocationssend information as soon as possible, complete the task as soon as possible, respond as soon as possiblemove quickly, react quickly, think quickly
Antonyms-slowly
Common mistakesOmitting 'as' and saying 'soon possible'., Using in overly casual situations., Translating directly into other languages leading to awkward phrasing.Using 'quick' instead of 'quickly' when modifying a verb., Placing 'quickly' too far from the verb it modifies., Confusing 'quickly' with 'fastly' since 'fast' is the correct adverb.
Usage notesCommonly used in both spoken and written English to indicate urgency; appropriate in both formal and informal contexts.Use 'quickly' when describing how something is done fast. Appropriate in both spoken and written English, but may be overly formal in casual conversations.

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As soon as possible
Quickly

Frequently asked questions: As soon as possible vs Quickly

What's the difference between As soon as possible and Quickly?

As soon as possible: Do something quickly or without delay. Quickly: In a fast manner

Which is more common: As soon as possible and Quickly?

Quickly is the most common in everyday English.

Can you show an example of each?

As soon as possible: Please submit your report as soon as possible so we can review it. Quickly: She ran quickly to catch the bus.

Can I use As soon as possible and Quickly interchangeably?

Not always. As soon as possible and Quickly are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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