Detain vs Gonna lock me up

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

Detain

FormalTop 2,000 (common)C1verb

Gonna lock me up

InformalTop 5,000 (fairly common)
Most formal: DetainMost common: Detain
 DetainGonna lock me up
Pronunciation🇬🇧 /["/dɪˈteɪn/","/dɪˈteɪnz/","/dɪˈteɪnd/","/dɪˈteɪnɪŋ/"]/🇺🇸 /["/dɪˈteɪn/","/dɪˈteɪnz/","/dɪˈteɪnd/","/dɪˈteɪnɪŋ/"]/🇬🇧 //ˈɡən.ə lɒk mi ʌp//🇺🇸 //ˈɡɒ.nə lɑk mi ʌp//
MeaningTo keep someone in a place, usually by the police, so they cannot leave.To be put in prison.
ExampleThe police decided to detain the suspect for further questioning.If you keep breaking the law, they're gonna lock me up.
RegisterFormalInformal
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR levelC1-
Part of speechverb
Collocationsbriefly, indefinitely, illegally, need not, for, in connection with, be detained in custody, be detained in hospital, detain somebody without chargegonna lock up, gonna lock someone up, gonna get locked up
Antonymsrelease, free, liberate-
Common mistakesConfused with 'retain' which means to keep possession of something., Using 'detain' when referring to someone simply waiting, instead of being held by authority., Incorrectly using 'detain' without specifying who is being detained.Confused with 'going to' - 'gonna' is informal and not suitable for formal contexts., Using 'gonna' in written essays or formal emails., Misunderstanding context - it's often used metaphorically, not just literally.
Usage notesUsed in legal and police contexts. Be careful using it informally; it's not common in everyday conversations about delays or waiting.Used in informal contexts, often in song lyrics or casual conversations. Not suitable for formal writing or speech.

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Gonna lock me up

Frequently asked questions: Detain vs Gonna lock me up

What's the difference between Detain and Gonna lock me up?

Detain: To keep someone in a place, usually by the police, so they cannot leave. Gonna lock me up: To be put in prison.

Which is more formal: Detain and Gonna lock me up?

Detain is the most formal of these.

Which is more common: Detain and Gonna lock me up?

Detain is the most common in everyday English.

Can you show an example of each?

Detain: The police decided to detain the suspect for further questioning. Gonna lock me up: If you keep breaking the law, they're gonna lock me up.

Can I use Detain and Gonna lock me up interchangeably?

Not always. Detain and Gonna lock me up 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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