isbren is the masculine singular definite of isbre.

isbreN

Kven

jäätikköN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:30350Edit on GitHub Suggest

jiehkkiN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:71698Edit on GitHub Suggest

Case	Sg	Pl
Indef	isbre	isbrer
Def	isbren	isbrene