polis

Nouns ending in -is often derive from Latin or Greek and are common in both Swedish and English. They usually form their plural by adding -er, but 'polis' is an exception and remains the same in the plural when referring to the institution or collective force. However, when referring to individual officers, it takes -er (poliser).

En polis (A police officer) — Flera poliser (Several police officers); Polisen (The police, institution) — Polisen (The police, still the institution)

Definite form: For common nouns, the definite singular form is often created by adding a suffix (-en, -et, -na, -a). For 'polis', the definite singular is 'polisen'.

Polisen är här. (The police are here.)

Indefinite form: 'Polis' is a common noun (en-word).

Jag såg en polis. (I saw a police officer.)

Compound nouns: 'Polis' can be part of compound nouns to specify different roles or departments. The first part of a compound noun is usually in its indefinite form.

Polisbil (Police car), Polishund (Police dog), Polisstation (Police station)

Genitive case: To show possession, an -s is added to the end of the noun, even for definite forms.

Polisens bil (The police's car / The police car); Polismannens hatt (The police officer's hat)