I know it vs I smell it in the air

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

I know it

Top 2,000 (common)

I smell it in the air

Top 5,000 (fairly common)
Most common: I know it
 I know itI smell it in the air
Pronunciation🇬🇧 //aɪ nəʊ ɪt//🇺🇸 //aɪ noʊ ɪt//🇬🇧 //aɪ smɛl ɪt ɪn ðə ɛə//🇺🇸 //aɪ smɛl ɪt ɪn ðə ɛr//
MeaningI understand it.I sense something happening or about to happen.
ExampleWhen she asked about the math problem, I confidently said, 'I know it.'I smell it in the air; something is about to change in the company.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 5,000 (fairly common)
CollocationsI know it well, I know it for sure, I know it by heart, I know it all, I know it very wellsense a change, feeling in the air, something's coming
Common mistakesSaying 'I know it' when unsure; use 'I think so' instead., Overusing in formal settings; not appropriate for serious discussions.Using it to describe specific odors instead of feelings., Confusing it with literal smell instead of the metaphorical meaning., Overusing in contexts where more concrete language is needed.
Usage notesUse in conversational contexts to express familiarity or understanding. Avoid in formal writing.Use this phrase when you have a feeling or intuition about a situation. It’s neutral and can fit in both casual and formal contexts.

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I know it
I smell it in the air

Frequently asked questions: I know it vs I smell it in the air

What's the difference between I know it and I smell it in the air?

I know it: I understand it. I smell it in the air: I sense something happening or about to happen.

Which is more common: I know it and I smell it in the air?

I know it is the most common in everyday English.

Can you show an example of each?

I know it: When she asked about the math problem, I confidently said, 'I know it.' I smell it in the air: I smell it in the air; something is about to change in the company.

Can I use I know it and I smell it in the air interchangeably?

Not always. I know it and I smell it in the air 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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