tzatziki UK /tsæˈtsi.ki/US /tsɑˈtsi.ki/ noun1 •An appetizer made from yogurt, cucumber, garlic, olive oil and dill or mint; usually served with pita bread and as a meze"Twelve gyro supreme platters, six chicken souvlaki, four more with pork, six dolmas, six mezze platters, six Greek salads, eight baklava, and a side of tzatziki!" he said. — 2026 formstzatzikis