Here's a breakdown:
* Magical Family: A squib is born into a family where magic is common. This can be a family of pure-blood wizards, half-blood wizards, or even families with a history of magic but where some members are squibs.
* No Magic: Despite their magical heritage, squibs have no magical abilities. This means they cannot perform spells, wield wands, or use magic in any way.
* Difference From Muggles: Squibs are not the same as Muggles, who are individuals with no magical bloodline at all. Squibs are still considered a part of the magical world, even if they cannot participate in its magical aspects.
Examples in Harry Potter:
* Filch: The caretaker of Hogwarts School of Witchcraft and Wizardry is a well-known squib. He can see and interact with magical beings, but he has no magical abilities himself.
* Arabella Figg: A neighbour of the Dursleys, she is a squib and serves as an unofficial Order of the Phoenix member, keeping an eye on Harry.
Squibs in the Harry Potter world are often seen as:
* Outcasts: They don't quite belong in the magical world but are also not entirely comfortable in the Muggle world.
* Hidden: Some squibs may try to hide their lack of magic, while others are open about it.
* Unfortunate: The inability to use magic can be seen as a drawback in a society that values magical abilities.
However, the books also show that squibs can be valuable members of the magical community, contributing their skills and knowledge in other ways.