Check him out vs Consider vs Look at vs Observe

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

Check him out

InformalTop 2,000 (common)

Consider

Top 1,000 (very common)A2verb

Look at

Top 1,000 (very common)

Observe

Top 1,000 (very common)B2verb
 Check him outConsiderLook atObserve
Pronunciation🇬🇧 //ʧɛk hɪm aʊt//🇺🇸 //ʧɛk hɪm aʊt//🇬🇧 //kənˈsɪdə//🇺🇸 //kənˈsɪdər//🇬🇧 //lʊk æt//🇺🇸 //lʊk æt//🇬🇧 /["/əbˈzɜːv/","/əbˈzɜːvz/","/əbˈzɜːvd/","/əbˈzɜːvɪŋ/"]/🇺🇸 /["/əbˈzɜːrv/","/əbˈzɜːrvz/","/əbˈzɜːrvd/","/əbˈzɜːrvɪŋ/"]/
MeaningLook at him or see what he's like.To think about something carefully.To see or pay attention to something.to watch something carefully
ExampleYou should really check him out; he has great style.I will consider your suggestion.Please look at the diagram on the board.Please observe the changes in the experiment carefully.
RegisterInformalNeutralNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)
CEFR level-A2-B2
Part of speechverbverb
Collocationscheck someone out, check out a place, check out togetherconsider carefully, consider an option, consider a possibilitylook at someone, look at something, look at the results, look at the evidencecarefully, closely, precisely, be able to, be possible to, be difficult to, among, for, from, be commonly observed, be frequently observed, be widely observed, carefully, closely, precisely, be able to, be possible to, be difficult to, among, for, from, be commonly observed, be frequently observed, be widely observed, astutely, correctly, keenly, to, correctly, faithfully, scrupulously, fail to, failure to observe something
Antonyms-ignore, dismiss, overlook-ignore, neglect, overlook
Common mistakesConfusing with 'check in', which means to register, Using 'check out' without object when it's needed, Assuming it's always a positive actionConfuse with 'considering' which is a different form., Omit the object, e.g., saying 'Consider' without specifying what., Mix with 'contemplate', which has a deeper meaning.Using 'look at' without an object, e.g. 'Look at.', Confusing with 'see' as both can mean looking., Incorrectly using 'look at' for non-visual contexts, e.g. emotions.Confuse with 'abserve' which is not a word., Use 'observed' incorrectly with non-actions, like 'observed the chair'., Forget the preposition when used with 'something' as in 'observe at the sky' instead of 'observe the sky'.
Usage notesUsed in casual conversation; may not be suitable for formal writing. Check out can imply casual observation or evaluation.Use 'consider' when you are thinking about options or possibilities. It’s appropriate in both spoken and written contexts, but may sound too formal in casual conversations.Use 'look at' for directing someone's attention. It’s neutral enough for casual and formal situations, but avoid in overly serious contexts.Use 'observe' when you are watching something closely or carefully. It is a neutral term suitable for both formal and informal contexts, but it may not be suitable for casual conversations where simpler words like 'watch' may work better.

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Check him out
Consider
Look at
Observe

Frequently asked questions: Check him out vs Consider vs Look at vs Observe

What's the difference between Check him out, Consider, Look at, and Observe?

Check him out: Look at him or see what he's like. Consider: To think about something carefully. Look at: To see or pay attention to something. Observe: to watch something carefully

Which is more advanced: Check him out, Consider, Look at, and Observe?

Observe is the highest level, at B2, on the CEFR scale.

Can you show an example of each?

Check him out: You should really check him out; he has great style. Consider: I will consider your suggestion. Look at: Please look at the diagram on the board. Observe: Please observe the changes in the experiment carefully.

Can I use Check him out, Consider, Look at, and Observe interchangeably?

Not always. Check him out, Consider, Look at, and Observe 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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