Faster

(1) fast  (fst)

adj. fast·er, fast·est

3. Quick to understand or learn; mentally agile: a class for the faster students.

 

(2) fast

intr.v.

1. To abstain from food.

2. To eat very little or abstain from certain foods, especially as a religious discipline. 

 

fast

n.

1. The act or practice of abstaining from or eating very little food.

2. A period of such abstention or self-denial.