(psychology) The understanding (typically developed during early infancy) that an object still exists even when it disappears from sight, or other senses.

A visa status which allows a person to reside indefinitely in a foreign country without acquiring citizenship in that country

a type of felt-tip pen used to create permanent water-resistant writing on a surface such as a writable DVD

A characteristic of a fabric, especially one used in clothing, often created by applying a chemical treatment and pressure, which causes lasting resistance to wrinkling and retention of pleats and creases.

Alternative spelling of permanent press

(colloquial) A tattoo / (colloquial) Any form of tattoo, piercing, (deliberate) scarring or other body modification that is considered permanent or would take significant effort to remove.

(rail transport, Britain, Australia) The track and ballast (bed) of a railway.

(physics) A material, or piece of such material, which retains its magnetism even when not subjected to any external magnetic fields.

(chemistry) Barium sulphate (heavy spar), used as a white pigment or paint, in distinction from white lead, which tarnishes and darkens from the formation of the sulphide.

A loan (e.g. between museums) for an unspecified period of time.