Proportion vs Share

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

 ProportionShare
MeaningA part or share of something in relation to the whole.To let someone use or have part of something that you have.
CEFR levelB2A1
Part of speechnounverb
Usage notesUse 'proportion' to discuss ratios or relationships between different amounts. Often appropriate in mathematics, statistics, and discussions about fairness. Avoid in casual conversation when not discussing specific comparisons.Use 'share' when talking about dividing resources or experiences. It's appropriate in both spoken and written English. Avoid in very formal contexts where more specific terms may be required.

Frequently asked questions: Proportion vs Share

What's the difference between "Proportion" and "Share"?

"Proportion" means: A part or share of something in relation to the whole. "Share" means: To let someone use or have part of something that you have.

When should I use "Proportion" and "Share"?

They can all be used in everyday English.

Are "Proportion" and "Share" the same CEFR level?

"Proportion" is at B2, "Share" is at A1 on the CEFR scale.

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