Thoroughly vs Through and through

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

Thoroughly

Top 2,000 (common)B2adverb

Through and through

Top 3,000 (common)
Most common: Thoroughly
 ThoroughlyThrough and through
Pronunciation🇬🇧 /["/ˈθʌrəli/"]/🇺🇸 /["/ˈθɜːrəli/"]/🇬🇧 //θruː ənd θruː//🇺🇸 //θru ənd θru//
MeaningIn a detailed and complete way.Completely; in every part.
ExampleWe thoroughly enjoyed ourselves.She is a dog lover through and through.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 3,000 (common)
CEFR levelB2-
Part of speechadverb
Collocationsthoroughly enjoy, thoroughly check, thoroughly understand, thoroughly investigate, thoroughly cleanseloyal through and through, honest through and through, committed through and through, passionate through and through, dedicated through and through
Antonymssuperficially, partially, incompletely-
Common mistakesUsing 'through' instead of 'thoroughly'., Confusing it with 'thorough', which is an adjective., Misplacing it in a sentence or using it in informal contexts.Used too literally instead of metaphorically., Confused with 'through' as a direction., Incorrectly worded as 'through and throughs'.
Usage notesUse this word to describe actions done completely and carefully. It's suitable in both speaking and writing. Avoid in casual conversations where simpler words like 'really' or 'very' may be more common."Through and through" is often used in informal contexts to emphasize totality, such as in personality descriptions. It may not be appropriate in very formal writing.

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Through and through

Frequently asked questions: Thoroughly vs Through and through

What's the difference between Thoroughly and Through and through?

Thoroughly: In a detailed and complete way. Through and through: Completely; in every part.

Which is more common: Thoroughly and Through and through?

Thoroughly is the most common in everyday English.

Can you show an example of each?

Thoroughly: We thoroughly enjoyed ourselves. Through and through: She is a dog lover through and through.

Can I use Thoroughly and Through and through interchangeably?

Not always. Thoroughly and Through and through 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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