Seriously vs Shut the front door

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

Seriously

Top 2,000 (common)B1adverb

Shut the front door

InformalBeyond 10,000 (less common)
Most formal: SeriouslyMost common: Seriously
 SeriouslyShut the front door
Pronunciation🇬🇧 /["/ˈsɪəriəsli/"]/🇺🇸 /["/ˈsɪriəsli/"]/🇬🇧 //ʃʌt ðə frʌnt dɔː//🇺🇸 //ʃʌt ðə frʌnt dɔr//
Meaningused to show that something is true or importantA surprising or shocking expression.
ExampleI seriously need to improve my math skills before the exam.When she said she won the lottery, I just had to say, 'Shut the front door!'
RegisterNeutralInformal
How commonTop 2,000 (common)Beyond 10,000 (less common)
CEFR levelB1-
Part of speechadverb
Collocationsseriously consider, seriously doubt, seriously think, seriously injureshut the front door expression, shut the front door moment, shut the front door reaction
Antonymsplayfully, jokingly-
Common mistakesUsing 'serious' instead of 'seriously' in adverbial contexts., Confusing with 'sincerely' when trying to express genuine feelings.Used in serious or formal contexts., Confused with literal door shutting., Misunderstood as a request rather than an expression.
Usage notesUsually used to emphasize seriousness in conversations. It can sound casual in informal settings but is appropriate in serious discussions.Used to express disbelief or surprise. Often used in casual conversations among friends; may not be suitable in formal settings.

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Seriously
Shut the front door

Frequently asked questions: Seriously vs Shut the front door

What's the difference between Seriously and Shut the front door?

Seriously: used to show that something is true or important Shut the front door: A surprising or shocking expression.

Which is more formal: Seriously and Shut the front door?

Seriously is the most formal of these.

Which is more common: Seriously and Shut the front door?

Seriously is the most common in everyday English.

Can you show an example of each?

Seriously: I seriously need to improve my math skills before the exam. Shut the front door: When she said she won the lottery, I just had to say, 'Shut the front door!'

Can I use Seriously and Shut the front door interchangeably?

Not always. Seriously and Shut the front door 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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