Bonsoir

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French for 'Good evening,' used here by young Frederick as a display of his precocious education.

Appearance

Mentioned once in Frasier Grinch.

Frasier Grinch

Season 3 · Episode 9 · S03E09

“Bonsoir, Uncle Niles.”
— Frederick

From the same episode and category.

“That's enough, Talulah. You're not fooling anyone.”

“I imagine he has visions of sugarplums dancing through his head.”

“Au contraire. I told her I was not about to apologise”

“Mele Keleke Maka, Bob.”