English Wikipedia has an article on:

passaggio

Wikipedia

passaggio (plural passaggi)

1. (music) The transition area between a singer's vocal registers.

   Synonym: break

From passare +‎ -aggio, or from Old French passage.

• IPA^(key): /pasˈsad.d͡ʒo/
• Rhymes: -addʒo
• Hyphenation: pas‧sàg‧gio

passaggio m (plural passaggi)

1. passage, passing, gap
2. transfer, transition

   Synonym: transizione

   Sono qua solo di passaggio ― I'm just passing through

3. route
4. traffic
5. (sports) pass
6. aisle
7. transit

   Synonym: attraversamento

8. phase, stage, period, level, degree, step

   Synonyms: stadio, grado, livello, periodo, fase

• passaggio a livello (“level crossing”)
• passaggio pedonale (“pedestrian crossing”)
• passaggio sotterraneo (“underpass, subway”)
• dare un passaggio (ad un autostoppista) (“give a ride to a hitchhiker”)