| 1. | to abstain from all food. |
| 2. | to eat only sparingly or of certain kinds of food, esp. as a religious observance. |
| 3. | to cause to abstain entirely from or limit food; put on a fast: to fast a patient for a day before surgery. |
| 4. | an abstinence from food, or a limiting of one's food, esp. when voluntary and as a religious observance; fasting. |
| 5. | a day or period of fasting. |

fast 2
v. fast·ed, fast·ing, fasts
To abstain from food.
To eat little or abstain from certain foods, especially as a religious discipline.
The act or practice of abstaining from or eating very little food.
A period of such abstention or self-denial.