As a wine connoisseur, she could distinguish between different grape varieties.
The museum curator was an art connoisseur who could identify the artist of a painting with just a glance.
He prided himself on being a music connoisseur, collecting rare vinyl records from around the world.
The coffee connoisseur could taste the subtle differences in flavor profiles of beans from different regions.
She considered herself a food connoisseur, always seeking out the best restaurants in town.