Meaning of “size” - Learner’s Dictionary

size

noun us uk /saɪz/
Extra Examples
Its forests have shrunk to almost half the size they were 10 years ago.Our new house is double the size of our old one.Roses vary widely in size and shape.He was taunted by his classmates because of his size.Compared to companies that size we're just small fry.
HOW BIG [ C, U ]

A2 how big or small something is:

It's an area about the size of Oxford.
The size of some of those trees is incredible (= they are very large).
MEASURE [ C ]

A2 one of the different measurements in which things, for example clothes, food containers, etc are made:

a size 10 skirt
What size shoes do you take?
I usually buy the 1.5 litre size.
→ See also all shapes and sizes

(Definition of “size” from the Cambridge Learner’s Dictionary © Cambridge University Press)