tupperware
nounUK /ˈtʌpəweə/
US /ˈtʌpərwer/
Tupperware is a plastic box with a lid that you use to keep food fresh.
She packed her lunch in a Tupperware container.
OTHER MEANINGS
2. A brand name for a range of plastic storage containers.
The company is famous for making Tupperware.
3. Informal term for a Tupperware party, a social event where such products are sold.
My aunt hosted a Tupperware last weekend.
4. Any reusable plastic container with a tight-fitting lid.
He stored the soup in a Tupperware in the freezer.