launchstage

noun
UK /ˈlɔːntʃ steɪdʒ/
US /ˈlɔːntʃ steɪdʒ/

A launchstage is the flat part where a rocket sits before it flies up.

The rocket stood on the launchstage, ready to blast off.


OTHER MEANINGS

2. A stage in a project when something new is first shown or started.

The app is still at the launchstage, so only a few people can try it.

3. A raised platform used to send a boat or glider into the water or air.

Workers rolled the glider onto the launchstage at the top of the hill.

4. The early step of a product's release when it first becomes available.

During the launchstage, the game was free for everyone to download.