TRUNK pural trunks
1. COUNTABLE NOUN [noun NOUN]
The trunk of a tree is the large main stem from which the branches grow.
...the gnarled trunk of a birch tree. [+ of]
...toadstools growing on fallen tree trunks.
Synonyms: stem, stock, stalk, bole
2. COUNTABLE NOUN
A trunk is a large, strong case or box used for storing things or for taking on a journey.
3. COUNTABLE NOUN [usually with poss]
An elephant's trunk is its very long nose that it uses to lift food and water to its mouth.
4. COUNTABLE NOUN
The trunk of a car is a covered space at the back or front in which you put luggage or other things.
[US]
REGIONAL NOTE:
in BRIT, use boot
5. PLURAL NOUN
Trunks are shorts that a man wears when he goes swimming.
I wear these trunks because they have a streamline effect in the water.
6. COUNTABLE NOUN [usually singular]
Your trunk is the central part of your body, from your neck to your waist.
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* Любимое слово, на его примере хорошо иллюстрировать полисемию в английском языке.