priority treatment; preferential treatment
Used when someone or something is given higher priority over others, often in service, processing, or allocation contexts.
Regular customers are given priority treatment.
Urgent matters will be handled with priority.
優遇 means favorable or preferential treatment, often with a nuance of special kindness or favor, while 優先扱い is more about order of precedence.
Compound of 優先 (priority) and 扱い (treatment, handling).