What is the meaning of Quisling?

A traitor who collaborates with the enemy.

present participle and gerund of quisle

a quisling (traitor who collaborates with the enemy. Especially one who collaborates with an enemy force occupying their country)

quisling

quisling

a quisling (traitor who collaborates with an enemy force occupying their country)

alternative spelling of kvisling (a quisling, traitor)

quisling (traitor who collaborates with the enemy)

quisling

a quisling

Source: wiktionary.org