“Squib” is the wizarding world’s term for a person with magical parents who is born without magic. Kids at Hogwarts make fun of Albus by calling him a squib, even though he isn’t one.
Get the entire Harry Potter and the Cursed Child LitChart as a printable PDF.
"My students can't get enough of your charts and their results have gone through the roof." -Graham S.
Squib Term Timeline in Harry Potter and the Cursed Child
The timeline below shows where the term Squib appears in Harry Potter and the Cursed Child. The colored dots and icons indicate which themes are associated with that appearance.
Part 1, Act 1, Scene 4
...to laugh at Albus, saying he isn’t like Harry at all. They call him a squib.
(full context)