Fair warning vs Notice

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

Fair warning

Beyond 10,000 (less common)

Notice

Top 1,000 (very common)A2verb
Most common: Notice
 Fair warningNotice
Pronunciation🇬🇧 //fɛə ˈwɔːnɪŋ//🇺🇸 //fɛr ˈwɔrnɪŋ//🇬🇧 /["/ˈnəʊtɪs/","/ˈnəʊtɪsɪz/","/ˈnəʊtɪst/","/ˈnəʊtɪsɪŋ/"]/🇺🇸 /["/ˈnəʊtɪs/","/ˈnəʊtɪsɪz/","/ˈnəʊtɪst/","/ˈnəʊtɪsɪŋ/"]/
MeaningA heads-up about something to expect in the future.to see or pay attention to something
ExampleShe gave me a fair warning about the difficult exam coming up next week.I didn't notice the time passing while I was reading.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 1,000 (very common)
CEFR level-A2
Part of speechverb
Collocationsgive fair warning, issue fair warning, receive fair warningnot even, not really, barely, fail to, not appear to, not seem to, can’t help but notice something, can’t help noticing something, the first thing I, he, etc. noticed, not even, not really, barely, fail to, not appear to, not seem to, can’t help but notice something, can’t help noticing something, the first thing I, he, etc. noticed
Antonyms-ignore, overlook
Common mistakesUsed after the event instead of before., Confused with 'fairytale warning', which doesn't exist., Overused in casual conversations.'Notice' is sometimes confused with 'notify' — 'to notify' means to inform someone., Learners may use 'noticing' incorrectly as a noun; the correct noun is 'notice'., Some learners forget to use 'notice' in the simple past form 'noticed' when talking about past events.
Usage notesUsed to alert someone before a potentially unpleasant or important situation. Can be informal or formal depending on context.Use 'notice' when you become aware of something. It's appropriate in both spoken and written English, but more formal contexts might use 'observe' instead.

See it in real clips

Fair warning
Notice

Frequently asked questions: Fair warning vs Notice

What's the difference between Fair warning and Notice?

Fair warning: A heads-up about something to expect in the future. Notice: to see or pay attention to something

Which is more common: Fair warning and Notice?

Notice is the most common in everyday English.

Can you show an example of each?

Fair warning: She gave me a fair warning about the difficult exam coming up next week. Notice: I didn't notice the time passing while I was reading.

Can I use Fair warning and Notice interchangeably?

Not always. Fair warning and Notice 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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