per
word
Definition
Used to show a rate, amount, or relation for each one of something, as in 'ten dollars per hour' or 'miles per gallon'. It is also used in some formal expressions to mean 'according to' or 'by means of'.
Usage & Nuances
Most commonly used for rates and measurements: 'per person', 'per day', 'miles per hour'. In everyday English, people often say 'a day' instead of 'per day' in speech, but 'per' is very common in writing, prices, business, and formulas. It sounds more formal in uses like 'as per your email'.
Example Sentences
The ticket costs $15 per person.
basic
She earns $20 per hour.
basic
This car can travel 30 miles per gallon.
basic
The app charges users per download, not per month.
natural
We’re only allowed two tickets per customer.
natural
As per your email, the meeting starts at 9.
natural