cook

fry in oil 

 boil in hot water
bake bread and cakes in an oven 

roast meat or vegetables in an oven  

microwave using a microwave oven
grill/broil American English using a grillsteam, toast, simmer, poach, barbecue, stir-fry, saute, chargrill
raw not cooked 

rare used about meat that has been cooked for a short time
well-done used about meat that has been cooked for a long time cook