Option vs Possibility

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

Option

Top 1,000 (very common)A2noun

Possibility

Top 2,000 (common)A2noun
Most common: Option
 OptionPossibility
Pronunciation🇬🇧 /["/ˈɒpʃn/"]/🇺🇸 /["/ˈɑːpʃn/"]/🇬🇧 /["/ˌpɒsəˈbɪləti/"]/🇺🇸 /["/ˌpɑːsəˈbɪləti/"]/
MeaningA choice or possibility.Something that might happen or be true.
ExampleYou have the option to choose your own adventure in the story.There is a possibility of rain tomorrow, so take your umbrella.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2A2
Part of speechnounnoun
Collocationsavailable, possible, viable, choose, exercise, select, keep your options open, leave your options open, available, possible, viable, choose, exercise, select, keep your options open, leave your options open, first, share, stock, have, exercise, take, option on, available, possible, viable, choose, exercise, select, keep your options open, leave your options openexciting, interesting, intriguing, allow somebody, create, offer somebody, exist, remain, possibility for, possibility of, not beyond the bounds of possibility, within the realm of possibility, a number of possibilities, exciting, interesting, intriguing, allow somebody, create, offer somebody, exist, remain, possibility for, possibility of, not beyond the bounds of possibility, within the realm of possibility, a number of possibilities
Antonymsobligation, constraintimpossibility, certainty
Common mistakesConfused with 'choice' — 'option' suggests multiple possibilities, while 'choice' may imply a selection., Misusing in singular — 'options' is often more appropriate when discussing more than one., Using as a verb — 'option' is a noun, not a verb.Confusing 'possibility' with 'probability' (possibility is broader)., Using 'possibility' when a more definite word like 'surety' is needed., Incorrectly using it as a verb instead of a noun.
Usage notesUse 'option' when talking about available choices. It's appropriate in both casual and formal settings but less common in very informal speech. Avoid using it when there are no choices to make.Use 'possibility' when discussing potential events or situations. It's suitable for both spoken and written language. Avoid informal contexts where simpler words may be more appropriate.

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Option

Frequently asked questions: Option vs Possibility

What's the difference between Option and Possibility?

Option: A choice or possibility. Possibility: Something that might happen or be true.

Which is more common: Option and Possibility?

Option is the most common in everyday English.

Are Option and Possibility the same CEFR level?

Option: A2, Possibility: A2 on the CEFR scale.

What part of speech are Option and Possibility?

Option: noun, Possibility: noun.

Can you show an example of each?

Option: You have the option to choose your own adventure in the story. Possibility: There is a possibility of rain tomorrow, so take your umbrella.

Can I use Option and Possibility interchangeably?

Not always. Option and Possibility 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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