Expression vs Look

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

Expression

Top 1,000 (very common)A2noun

Look

High-frequency chunkA1
 ExpressionLook
Pronunciation🇬🇧 /["/ɪkˈspreʃn/"]/🇺🇸 /["/ɪkˈspreʃn/"]/🇬🇧 /["/lʊk/","/lʊks/","/lʊkt/","/ˈlʊkɪŋ/"]/🇺🇸 /["/lʊk/","/lʊks/","/lʊkt/","/ˈlʊkɪŋ/"]/
MeaningA way of showing feelings or ideas, often through words or actions.To use your eyes to see something.
ExampleHis expression changed suddenly when he saw the surprise.Please look at the sky; it's so beautiful today.
RegisterNeutralNeutral
How commonTop 1,000 (very common)High-frequency chunk
CEFR levelA2A1
Part of speechnoun
Collocationscommon, colloquial, slang, use, hear, mean something, clear, concrete, material, achieve, find, reach, beyond expression, freedom of expression, a means of expression, neutral, blank, dazed, have, hold, wear, alter, change, grow…, without expression, expression of, the expression in somebody’s eyes, the expression on somebody’s face, clear, concrete, material, achieve, find, reach, beyond expression, freedom of expression, a means of expressioncarefully, closely, briefly, turn to, let somebody, at, towards/​toward, look and see, make somebody/​something, like, to, look as if, look as though, make somebody/​something, like, to, look as if, look as though, make somebody/​something, like, to, look as if, look as though
Antonymssuppress, silence, repressionignore, overlook, disregard
Common mistakesConfusing 'expression' with 'impression' (different meanings)., Using 'expression' as a verb instead of a noun., Not recognizing that 'expression' can refer to facial expressions as well.'Look' misused instead of 'see' when talking about understanding something., Using 'look' without a preposition when speaking about observing (should be 'look at')., Confusing 'look' with 'watch' when referring to a focused activity.
Usage notesUse in both written and spoken contexts. It works well in artistic discussions but may not be appropriate in very technical or scientific conversations.Use 'look' when referring to the action of seeing. It is appropriate in both casual and formal contexts, but can become less formal in expressions like 'look here' or 'look out'.

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Look

Frequently asked questions: Expression vs Look

What's the difference between Expression and Look?

Expression: A way of showing feelings or ideas, often through words or actions. Look: To use your eyes to see something.

Which is more advanced: Expression and Look?

Expression is the highest level, at A2, on the CEFR scale.

Are Expression and Look the same CEFR level?

Expression: A2, Look: A1 on the CEFR scale.

Can you show an example of each?

Expression: His expression changed suddenly when he saw the surprise. Look: Please look at the sky; it's so beautiful today.

Can I use Expression and Look interchangeably?

Not always. Expression and Look 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.