• c - cup (8 ounces liquid)
• deg - degree
• doz - dozen (quantity 12)
• gal - gallon (16 cups or 128 ounces liquid)
• hr - hour
• lb - pound (16 ounces weight)
• lg - large
• med - medium
• mod - moderate (usually relates to oven temp ~ 350° F.)
• oz - ounce
• pt - pint (2 cups or 16 ounces liquid)
• qt - quart (4 cups 32 ounces liquid)
• pkg - package
• tsp - teaspoon
• tbsp - tablespoon

More cooking abbreviations:

bottle - btl
baking powder -B.P.
black - blk.
minutes - min.
optional -(opt.)
ounces - ozs.
small - sm.
vegetable - veg.
doble broiler - d.b.
cubic - cu.
drop - dp.
peck -pk.
sugarfree - SuF
partially boiled - par-boiled
square - sq.