Entirely vs Fully

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

Entirely

Top 2,000 (common)B2adverb

Fully

Top 2,000 (common)B2adverb
 EntirelyFully
Pronunciation🇬🇧 /["/ɪnˈtaɪəli/"]/🇺🇸 /["/ɪnˈtaɪərli/"]/🇬🇧 /["/ˈfʊli/"]/🇺🇸 /["/ˈfʊli/"]/
MeaningCompletely or fully.completely or totally
ExampleThe experience was **entirely new** to me.I **fully understand** your motives.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2B2
Part of speechadverbadverb
Collocationsentirely different, entirely possible, entirely subjectivefully aware, fully prepared, fully understand, fully loaded, fully engage
Antonymspartially, incompletelypartially, incompletely, slightly
Common mistakesConfused with 'entire' which is an adjective., Used incorrectly in informal contexts, such as in slang., Misplaced in a sentence, making it sound awkward.Using 'fully' in place of 'very' which is not always correct., Confusing 'fully' with 'fill' in terms of spelling., 'Fully' is sometimes misused in contexts where 'entirely' or 'completely' fit better.
Usage notesUsed to emphasize completeness. Suitable in both spoken and written contexts; however, avoid in overly casual conversations.Use 'fully' to emphasize that something is done to the highest degree. Avoid using it in very casual speech where simpler words like 'really' may be preferred.

Frequently asked questions: Entirely vs Fully

What's the difference between Entirely and Fully?

Entirely: Completely or fully. Fully: completely or totally

Are Entirely and Fully the same CEFR level?

Entirely: B2, Fully: B2 on the CEFR scale.

Can I use Entirely and Fully interchangeably?

Not always. Entirely and Fully 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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