2.228 measuring things

When you want to refer to a size, distance, area, volume, weight, speed, or temperature, you can do so by using a number or quantifier in front of a measurement noun such as 'feet' and 'miles'.

Measurement nouns are explained in paragraphs 2.267 to 2.274.

If you do not know the exact number, size, or quantity of something, you can give an approximate amount or measurement using one of a group of special words and expressions. These are explained in paragraphs 2.281 to 2.288.