bridge note

noun2

1. •
   A Folgezettel; a note that connects two seemingly separate ideas or clusters of notes by explaining the why and how of their relationship, acting as a conceptual bridge to reveal new insights, rather than just linking one to the other.
2. •
   Synonym of bridge loan; a short-term financing tool that provides immediate cash to bridge the gap between two financial events (e.g., helping a startup get quick funds before a big investment round, often converting to equity later).