through

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

• preposition In one side and out the opposite or another side of.
• preposition Among or between; in the midst of.
• preposition By way of.
• preposition By the means or agency of.
• preposition Into and out of the handling, care, processing, modification, or consideration of.
• preposition Here and there in; around.
• preposition From the beginning to the end of.
• preposition At or to the end of; done or finished with, especially successfully.
• preposition Up to and including.
• preposition Past and without stopping for.
• preposition Because of; on account of.
• adverb From one end or side to another or an opposite end or side.
• adverb From beginning to end; completely.
• adverb Throughout the whole extent or thickness; thoroughly.
• adverb Over the total distance; all the way.
• adverb To a conclusion or an accomplishment.
• adjective Allowing continuous passage; unobstructed.
• adjective Affording transportation to a destination with few or no stops and no transfers.
• adjective Continuing on a highway without exiting.
• adjective Passing or extending from one end, side, or surface to another.
• adjective Having finished; at completion.
• adjective Having no further concern, dealings, or connection.
• adjective Having no more use, value, or potential; washed-up.
• adjective Doomed to death or destruction.
• idiom (through and through) In every part; throughout.
• idiom (through and through) In every aspect; completely.

from The Century Dictionary.

• noun In plowing and other field-work, a single passage across the field; half of a bout.
• noun A stone coffin.
• noun A through-stone; a perpend.
• From one side or end to the other side or end of; from the beginning to the end of: expressing transition or motion from or as from one point to another.
• From the beginning to the end of; in or during the course of; coincident with: as, to enjoy good health all through life.
• Throughout; over the whole surface or extent of; in all directions in; all over: as, to travel through the country.
• Expressing passage in and out of, among, along, or within some yielding medium, or separable or penetrable aggregate: as, to move through the water, as a fish or a ship; to wander through the jungle; to run the fingers through the hair.
• Expressing complete passage from one step to another in any series or course of action or treatment: as, to go through an operation; to go through college (that is a course of instruction in college); to go through a course of treatment or training.
• Among: expressing a succession of experiences in passing along any course to ultimate exit or emergence: as, to pass through perils or tribulations.
• By way of: expressing a preliminary or intermediate stage.
• By means of: expressing instrumentality, means, or agency.
• By reason of; on account of; in consequence of; out of: expressing reason or actuating principle or impulse: as, to run away through fear.
• See the verbs.
• From one end or side to the other: as, to pierce or bore a thing through. See thorough, adv.
• From beginning to end: as, to read a letter through.
• To the end; to the ultimate purpose: as, to carry a project through.
• To the end or terminal point, as of a line of travel: as, that ticket will take you through.
• Thoroughly.
• See the verbs.
• Clear; open; unobstructed.
• That extends or goes with little or no interruption or without change from one important or distant place to another: as, a through line of railway; a through train; a through passenger.