Inform vs Tell me about it

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

Inform

Top 2,000 (common)B2verb

Tell me about it

InformalTop 2,000 (common)
Most formal: Inform
 InformTell me about it
Pronunciation🇬🇧 /["/ɪnˈfɔːm/","/ɪnˈfɔːmz/","/ɪnˈfɔːmd/","/ɪnˈfɔːmɪŋ/"]/🇺🇸 /["/ɪnˈfɔːrm/","/ɪnˈfɔːrmz/","/ɪnˈfɔːrmd/","/ɪnˈfɔːrmɪŋ/"]/🇬🇧 //tɛl mi əˈbaʊt ɪt//🇺🇸 //tɛl mi əˈbaʊt ɪt//
MeaningTo tell someone something important or give them information.Say more about something.
ExamplePlease inform me of any updates regarding the project timeline.I heard you went on a trip! Tell me about it!
RegisterNeutralInformal
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2-
Part of speechverb
Collocationsmerely, simply, regularly, be pleased to, regret to, be required to, about, oftell me more, tell me everything, tell me their story
Antonymsconceal, withhold, hide-
Common mistakesConfused with 'informant' — 'inform' is a verb, not a noun., Using 'inform' without an object — always say who you are informing., Misusing tenses — ensure correct form like 'informed' for the past.Using it in formal situations where a more serious response is needed., Confusing it with 'tell me about that,' which is more specific., Omitting context, making the phrase confusing without prior information.
Usage notesUse 'inform' in formal contexts, like writing or business. Avoid in casual conversations where 'tell' is more appropriate.Used in casual conversations to invite someone to elaborate. Not suitable for formal contexts like business meetings.

Frequently asked questions: Inform vs Tell me about it

What's the difference between Inform and Tell me about it?

Inform: To tell someone something important or give them information. Tell me about it: Say more about something.

Which is more formal: Inform and Tell me about it?

Inform is the most formal of these.

Can you show an example of each?

Inform: Please inform me of any updates regarding the project timeline. Tell me about it: I heard you went on a trip! Tell me about it!

Can I use Inform and Tell me about it interchangeably?

Not always. Inform and Tell me about it 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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