openingside
nounUK /ˈəʊpənɪŋ saɪd/
US /ˈoʊpənɪŋ saɪd/
The side of something that is open or not closed.
The openingside of the box let the little bird fly out.
OTHER MEANINGS
2. The side of a container or room where you can go in or out.
We walked through the openingside of the tent.
3. The part of a tool or machine that is not covered.
Keep your fingers away from the openingside of the fan.
4. The side of a book or card that is not sealed shut.
The openingside of the envelope was easy to tear.