Castell, Human Tower, Catalonia, Spain

- Pinya ("bulk"): the ground-level base, often composed of several hundred people. All towers have this, but it is never mentioned in the name.
- Folre ("cover"/"lining"): a second-level base built on top of the pinya. It is always mentioned when used.
- Manilles ("handles"/"handcuffs"): a third-level base built on top of the second-level folre. It is always mentioned when used.
- The word agulla ("needle") refers to a high column of one person per level which is built inside the main tower. When the castell is being dismantled, the agulla must remain standing until the outside part of the castell is already down.