About vs Approximately

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

About

Top 1,000 (very common)A1preposition

Approximately

Top 2,000 (common)B1adverb
Most common: About
 AboutApproximately
Pronunciation🇬🇧 /["/əˈbaʊt/"]/🇺🇸 /["/əˈbaʊt/"]/🇬🇧 /["/əˈprɒksɪmətli/"]/🇺🇸 /["/əˈprɑːksɪmətli/"]/
MeaningConcerning or in relation to something.About or close to a certain amount.
ExampleI read a book about nature.The journey took approximately seven hours.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1B1
Part of speechprepositionadverb
Collocationstalk about, think about, worry about, know about, care aboutapproximately equal to, approximately 50%, approximately three hours
Antonymsaway, beyondexactly, precisely
Common mistakesConfusing 'about' with 'around' in certain contexts., Using 'about' when 'regarding' would be more formal., Using 'about' in place of 'approximately' for numerical values.Using 'approximately' with a precise number (e.g., saying 'approximately 2000' instead of 'about 2000')., Confusing 'approximately' with 'exactly'., Omitting 'approximately' when it’s needed for clarity in estimates.
Usage notesUse 'about' when discussing topics or subjects. It's versatile in both spoken and written English, but informal expressions may avoid it in academic texts.Use 'approximately' when giving an estimate. It's appropriate in academic and professional contexts, but may sound overly formal in casual conversations.

Frequently asked questions: About vs Approximately

What's the difference between About and Approximately?

About: Concerning or in relation to something. Approximately: About or close to a certain amount.

Which is more common: About and Approximately?

About is the most common in everyday English.

Which is more advanced: About and Approximately?

Approximately is the highest level, at B1, on the CEFR scale.

Are About and Approximately the same CEFR level?

About: A1, Approximately: B1 on the CEFR scale.

What part of speech are About and Approximately?

About: preposition, Approximately: adverb.

Can you show an example of each?

About: I read a book about nature. Approximately: The journey took approximately seven hours.

Can I use About and Approximately interchangeably?

Not always. About and Approximately 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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