Firmly fixed; closely adhering; made firm; not loose,
unstable, or easily moved; immovable; as, to make fast the door.

Firm against attack; fortified by nature or art; impregnable;
strong.

To practice abstinence as a religious exercise or duty; to
abstain from food voluntarily for a time, for the mortification of the
body or appetites, or as a token of grief, or humiliation and
penitence.

A time of fasting, whether a day, week, or longer time; a
period of abstinence from food or certain kinds of food; as, an annual
fast.

Abstinence from food; omission to take nourishment.

To abstain from food; to omit to take nourishment in whole
or in part; to go hungry.

s. hızlı, çabuk, süratli. This is a very fast car. (Bu çok hızlı bir arabadır.)

f. oruç tutmak, perhiz etmek. Muslims fast in Ramadan. (Müslümanlar Ramazan ayında oruç tutarlar.)

z. hızlıca, çabukca, süratle. Run fast! (Hızlıca koş!)

Voluntary abstinence from food, for a space of time, as a
spiritual discipline, or as a token of religious humiliation.