/throoh/, prep.1. in at one end, side, or surface and out at the other: to pass through a tunnel; We drove through Denver without stopping. Sun came through the window.2. past; beyond: to go through a stop sign without stopping.3. from one to the other of; between or among the individual members or parts of: to swing through the trees; This book has passed through many hands.4. over the surface of, by way of, or within the limits or medium of: to travel through a country; to fly through the air.5. during the whole period of; throughout: They worked through the night.6. having reached the end of; done with: to be through one's work.7. to and including: from 1900 through 1950.8. by the means or instrumentality of; by the way or agency of: It was through him they found out.9. by reason of or in consequence of: to run away through fear.10. in at the first step of a process, treatment, or method of handling, passing through subsequent steps or stages in order, and finished, accepted, or out of the last step or stage: The body of a car passes through 147 stages on the production line. The new tax bill finally got through Congress.adv.11. in at one end, side, or surface and out at the other: to push a needle through; just passing through.12. all the way; along the whole distance: This train goes through to Boston.13. throughout: soaking wet through.14. from the beginning to the end: to read a letter through.15. to the end: to carry a matter through.16. to a favorable or successful conclusion: He barely managed to pull through.17. through and through,a. through the whole extent of; thoroughly: cold through and through.b. from beginning to end; in all respects: an aristocrat through and through.adj.18. having completed an action, process, etc.; finished: Please be still until I'm through. When will you be through with school?19. at the end of all relations or dealings: My sister insists she's through with selfish friends.20. passing or extending from one end, side, or surface to the other.21. traveling or moving to a destination without changing of trains, planes, etc.: a through flight.22. (of a road, route, way, course, etc., or of a ticket, routing order, etc.) admitting continuous or direct passage; having no interruption, obstruction, or hindrance: a through highway; through ticket.23. (of a bridge truss) having a deck or decks within the depth of the structure. Cf. deck (def. 21).24. of no further use or value; washed-up: Critics say he's through as a writer.[bef. 900; ME (prep. and adv.), metathetic var. of thourgh, OE thurh, c. G durch; akin to OE therh, Goth thairh through, OHG derh perforated, OE thyrel full of holes (adj.), hole (n.). See THIRL]Syn. 8. See by.
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