inventionfair
nounUK /ɪnˈvɛnʃən fɛə/
US /ɪnˈvɛnʃən fɛr/
A fun event where kids show the cool things they made or thought up.
Maya built a tiny robot for the inventionfair at her school.
OTHER MEANINGS
2. A school contest where students present new ideas and gadgets.
Our class spent a month getting ready for the inventionfair.
3. A public event where people display clever new devices.
The town held an inventionfair in the park on Saturday.
4. A gathering to share homemade machines and problem-solving ideas.
At the inventionfair, Leo showed a machine that waters plants by itself.