To cook food by heating in an oven or over a fire without covering, resulting in a crisp, possibly even slightly charred appearance.
to roast meat on a spit
To cook by surrounding with hot embers, ashes, sand, etc.
to roast a potato in ashes
To process by drying through exposure to sun or artificial heat
Coffee beans need roasting before use.
To heat to excess; to heat violently; to burn.
To admonish someone vigorously
I’m late home for the fourth time this week; my mate will really roast me this time.
To subject to bantering, severely criticize, sometimes as a comedy routine.
The class clown enjoys being roasted by mates as well as staff.
To dissipate by heat the volatile parts of, as ores.
The act by which something is roasted.
A rebuke or reprimand (usually from the recipient's point of view).
My boss gave me a roasting for last month's sales figures.
Very hot.
The day started out cool, but by noon it was roasting.