sidedoor
nounUK /ˈsaɪd.dɔː/
US /ˈsaɪd.dɔːr/
A side door is a door on the side of a building, not the front one.
We went in through the side door so we wouldn't wake the baby.
OTHER MEANINGS
2. A secret or less obvious way of getting into something, like a back way.
He found a side door into the company through a friend.
3. A door on the side of a vehicle, such as a car or train.
She opened the side door of the van to load the boxes.
4. A hidden or indirect way of doing something.
The new rule is a side door to higher fees.