Meaning & use
one
Used, especially in formal English, to refer to a person in general, including the speaker or listener.
See it in a sentence
One should always proofread an important email before clicking send.
If one arrives early, one can usually find a seat near the front.
A note on using this word
This impersonal use of one sounds formal or old-fashioned in everyday speech; you is the more common informal alternative.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. number
The lowest positive whole number; a single unit.
She ordered just one coffee instead of her usual two.
3. determiner
Used to refer to a particular but unspecified day, time, or instance.
One morning last winter, the whole town woke up to snow.
Make it your own
Write a sentence using “one”, then compare your use with the examples above.