Definitions

1. adjective

having a hard, rough, or cracked surface, especially on bread or pastry.

“She toasted a crusty baguette for the salad.”

2. noun

a hard outer layer, especially of bread or pastry.

“He broke off a piece of crust from the loaf.”

3. noun

a person who is rough or unpleasant in manner.

“He was a bit of a crusty old man, but he had a good heart.”

4. verb

to make something rough or hard, especially by drying or heating.

“The sun had crusty the soil, making it difficult to plant.”