kontrabasser is the masculine plural indefinite of kontrabass.

kontrabassN

Kven

kontrabassoN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:8407Edit on GitHub Suggest

kontrabássaN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:2862Edit on GitHub Suggest

Case	Sg	Pl
Indef	kontrabass	kontrabasser
Def	kontrabassen	kontrabassene