vitalstage

noun
UK /ˈvaɪ.təl.steɪdʒ/
US /ˈvaɪ.t̬əl.steɪdʒ/

A very important time in something's life when big things happen.

The caterpillar's vitalstage is when it turns into a butterfly.


OTHER MEANINGS

2. A stage in a game or show that matters the most for winning or success.

The final level is the vitalstage of the whole game.

3. The part of a project where the most important work must be done.

Building the base is the vitalstage of making a model volcano.

4. A moment in a story when everything changes.

Finding the map was the vitalstage of the adventure.