Definitions from

lie (l)
n.
  1. A false statement deliberately presented as being true; a falsehood.
  2. Something meant to deceive or give a wrong impression.

v. lied, ly·ing, (lng) lies
v. intr.

  1. To present false information with the intention of deceiving.
  2. To convey a false image or impression: Appearances often lie.

v. tr.

To cause to be in a specific condition or affect in a specific way by telling falsehoods: You have lied yourself into trouble.

Idiom:
lie through one's teeth

To lie outrageously or brazenly.

[Middle English, from Old English lyge. See leugh- in Indo-European Roots.]

Synonyms: lie, equivocate, fib, palter, prevaricate
These verbs mean to evade or depart from the truth: a witness who lied under oath; didn't equivocate about her real purpose; fibbed to escape being scolded; paltering with an irate customer; didn't prevaricate but answered honestly.

Source: The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2000 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

lie \Lie\ (l[imac]), n. [AS. lyge; akin to D. leugen, OHG. lugi, G. l["u]ge, lug, Icel. lygi, Dan. & Sw. l["o]gn, Goth. liugn. See Lie to utter a falsehood.] 1. A falsehood uttered or acted for the purpose of deception; an intentional violation of truth; an untruth spoken with the intention to deceive.

The proper notion of a lie is an endeavoring to deceive another by signifying that to him as true, which we ourselves think not to be so. --S. Clarke.

It is willful deceit that makes a lie. A man may act a lie, as by pointing his finger in a wrong direction when a traveler inquires of him his road. --Paley.

2. A fiction; a fable; an untruth. --Dryden.

3. Anything which misleads or disappoints.

Wishing this lie of life was o'er. --Trench.

To give the lie to. (a) To charge with falsehood; as, the man gave him the lie. (b) To reveal to be false; as, a man's actions may give the lie to his words.

White lie, a euphemism for such lies as one finds it convenient to tell, and excuses himself for telling.

Syn: Untruth; falsehood; fiction; deception.

Usage: Lie, Untruth. A man may state what is untrue from ignorance or misconception; hence, to impute an untruth to one is not necessarily the same as charging him with a lie. Every lie is an untruth, but not every untruth is a lie. Cf. Falsity.

Source: Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.

lie n 1: a statement that deviates from or perverts the truth [syn: prevarication] 2: position or manner in which something is situated v 1: be located or situated somewhere; occupy a certain position 2: be lying, be prostrate; be in a horizontal position; "The sick man lay in bed all day"l "the books are lying on the shelf" [ant: stand, sit] 3: originate (in); "The problems dwell in the social injustices in this country" [syn: dwell, consist, belong, lie in] 4: be and remain in a particular state or condition; "lie dormant" 5: tell an untruth; pretend with intent to deceive; "Don't lie to your parents"; "She lied when she told me she was only 29" 6: have a place in relation to something else: "The fate of Bosnia lies in the hands of the West"; "The responsibility rests with the Allies" [syn: rest] 7: assume a reclining position; "lie down on the bed until you feel better" [syn: lie down] [ant: arise] 8: assume a resting position, as on a flat surface

Source: WordNet ® 1.6, © 1997 Princeton University

lie an intentional violation of the truth. Lies are emphatically condemned in Scripture (John 8:44; 1 Tim. 1:9, 10; Rev. 21:27; 22:15). Mention is made of the lies told by good men, as by Abraham (Gen. 12:12, 13; 20:2), Isaac (26:7), and Jacob (27:24); also by the Hebrew midwives (Ex. 1:15-19), by Michal (1 Sam. 19:14), and by David (1 Sam. 20:6). (See ANANIAS.)

Source: Easton's 1897 Bible Dictionary

So you want to Lie Persuasively?