leadingtransition

noun
UK /ˈliːdɪŋ trænˈzɪʃən/
US /ˈliːdɪŋ trænˈzɪʃən/

A leading transition is the first change that starts something new.

The leading transition in the story happens when the hero leaves home.


OTHER MEANINGS

2. The main change that guides a process from one stage to another.

The leading transition in the project moved the team from planning to building.

3. A musical passage that introduces the next section.

The leading transition in the song builds up to the chorus.

4. The first step in a series of gradual changes.

The leading transition toward the new rules began with a small announcement.