fast

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Acting, moving, or capable of acting or moving quickly; swift.
• adjective Accomplished in relatively little time.
• adjective Acquired quickly with little effort and sometimes unscrupulously.
• adjective Quick to understand or learn; mentally agile.
• adjective Indicating a time somewhat ahead of the actual time.
• adjective Allowing rapid movement or action.
• adjective Designed for or compatible with a short exposure time.
• adjective Disposed to dissipation; wild.
• adjective Flouting conventional moral standards; sexually promiscuous.
• adjective Resistant, as to destruction or fading.
• adjective Firmly fixed or fastened.
• adjective Fixed firmly in place; secure.
• adjective Firm in loyalty: synonym: faithful.
• adjective Lasting; permanent.
• adjective Deep; sound.
• adverb In a secure manner; tightly.
• adverb To a sound degree; deeply.
• adverb In a rapid manner; quickly.
• adverb In quick succession.
• adverb Ahead of the correct or expected time.
• adverb In a dissipated, immoderate way.
• adverb Archaic Close by; near.
• intransitive verb To abstain from food.
• intransitive verb To eat very little or abstain from certain foods, especially as a religious discipline.
• noun The act or practice of abstaining from or eating very little food.
• noun A period of such abstention or self-denial.

from The Century Dictionary.

• To make fast; fix; fasten.
• Specifically To join in marriage; marry.
• So as to be fixed or firm; so as to be firmly fixed in its place or in a desired position; firmly; immovably: as, the door sticks fast.
• In archery, used elliptically for stand fast, or some similar injunction, in cautioning a person against passing between the shooter and the target, and directing him to stand fast, or remain where he is.
• Strongly; vehemently; greatly; hard.
• Tenaciously; durably; permanently.
• Eagerly.
• Soundly; closely; deeply.
• Close; near: as, fast by; fast beside. See below.
• Swiftly; rapidly; quickly; with quick motion or in rapid succession: as, to run fast; to move fast through the water, as a ship; the work goes on fast; it rains fast; the blows fell thick and fast.
• Firmly fixed in place; immovable.
• Strong against attack; fortified.
• Fixed in such a way as to prevent detachment, separation, removal, or escape; tight; secure; close; not loose nor easily detachable: as, take a fast hold; make fast the door; make fast a rope.
• Firm in adherence; steadfast; faithful.
• Tenacious; not fugitive; durable; lasting; permanent in tint: as, fast colors; fast to milling or to washing (said of colors, or of materials which will not change color under those operations).
• Close, as sleep; deep; sound.
• In use; not to be had.
• The game of prison-bars or prisoner's-base.
• Nautical, to belay: as, to make fast a rope.
• noun That which fastens or holds.
• noun Immovable shore-ice.
• noun An underlayer; an understratum.