This is the 6753rd most frequent French word.
koller
To glue or stick.
In this sentence, 'koller' is used as a verb meaning 'to glue'. The focus is on the physical action of attaching objects with adhesive.
Je vais koler les feuilles sur le carton.
I will glue the sheets onto the cardboard.
Here 'koller' is used figuratively, implying focusing or sticking attention on a task or idea.
Il a eu du mal à koler son esprit sur cette tâche.
He struggled to focus his mind on this task.
This demonstrates 'koller' in the realm of interpersonal connection, suggesting harmony or agreement between two entities.