IPA: /zuː/
KK: /zu/
A place where animals are kept for people to see, often in a park-like setting.
We visited the zoo to see the lions and elephants.
Zoo → The word 'zoo' is a shortened form of 'zoological garden', where 'zoo-' comes from 'zoology' (from Greek 'zōion', meaning animal) and '-logical' (from Greek 'logia', meaning study). Thus, 'zoo' refers to a place where animals are studied or displayed.
Think of 'zoo' as a place where you can see and learn about 'animals' ('zōion') — that's why it's called a zoo.