Real Dictionary

crop
countable noun: Crops are plants such as wheat and potatoes that are grown in large quantities for food.

crop in American English
a saclike enlargement of a bird's gullet or of a part of the digestive tract of earthworms and some insects, in which food is stored before digestion; craw
intransitive verb: to bear or yield a crop or crops
noun: the cultivated produce of the ground, while growing or when gathered
transitive verb: to cut off or remove the head or top of (a plant, grass, etc.)

crop in British English
noun: the produce of cultivated plants, esp cereals, vegetables, and fruit
verb: to cut (hair, grass, etc) very short