noun which may take the genitive case particle 'no'
lidded; covered
Describes something that has a lid or cover, often used attributively with の.
蓋付きの容器を買った。
I bought a lidded container.
noun
container with a lid
Refers to the container itself, emphasizing that it comes with a lid.
この蓋付きは電子レンジで使えます。
This container with a lid can be used in the microwave.
Compound of 蓋 (futa, 'lid') + 付き (tsuki, 'attached, with').