at (one's) expense

1. One's financial responsibility. Once I learned that the trip was at my expense, I decided not to go.

2. To one's detriment or disadvantage. I was furious when I heard the other kids telling jokes at my little brother's expense.

Name	Pronounced	Usage
Aleksandro	ah-lek-SAHN-dro	Esperanto
Diana	die-AN-ə (English), dee-AH-nah (Italian, German, Dutch)	English, Spanish, Italian, Portuguese, Romanian, Catalan, German, Dutch, Danish, Swedish, Norwegian,
Gentiana	-	Albanian
Isidora	ee-see-DHO-rah (Spanish), ee-zee-DO-rah (Italian), iz-i-DAWR-ə (English)	Serbian, Macedonian, Spanish, Portuguese, Russian (Rare), Italian (Rare), English (Rare), Ancient Gr
Ksawery	ksah-VE-ri	Polish
Ern	URN	English