\Know\, n.
Knee. [Obs.] --Chaucer.

\Know\, v. t. [imp. {Knew}; p. p. {Known}; p. pr. & vb. n.
{Knowing}.] [OE. knowen, knawen, AS. cn["a]wan; akin to OHG.
chn["a]an (in comp.), Icel. kn["a] to be able, Russ, znate to
know, L. gnoscere, noscere, Gr. ?, Skr. jn?; fr. the root of
E. can, v. i., ken. (?). See {Ken}, {Can} to be able, and cf.
{Acquaint}, {Cognition}, {Gnome}, {Ignore}, {Noble}, {Note}.]
1. To perceive or apprehend clearly and certainly; to
   understand; to have full information of; as, to know one's
   duty.
         O, that a man might know The end of this day's
         business ere it come!                 --Shak.
         There is a certainty in the proposition, and we know
         it.                                   --Dryden.
         Know how sublime a thing it is To suffer and be
         strong.                               --Longfellow.
2. To be convinced of the truth of; to be fully assured of;
   as, to know things from information.
3. To be acquainted with; to be no stranger to; to be more or
   less familiar with the person, character, etc., of; to
   possess experience of; as, to know an author; to know the
   rules of an organization.
         He hath made him to be sin for us, who knew no sin.
                                               --2 Cor. v.
                                               21.
         Not to know me argues yourselves unknown. --Milton.
4. To recognize; to distinguish; to discern the character of;
   as, to know a person's face or figure.
         Ye shall know them by their fruits.   --Matt. vil.
                                               16.
         And their eyes were opened, and they knew him.
                                               --Luke xxiv.
                                               31.
         To know Faithful friend from flattering foe. --Shak.
         At nearer view he thought he knew the dead.
                                               --Flatman.
5. To have sexual commerce with.
         And Adam knew Eve his wife.           --Gen. iv. 1.
Note: Know is often followed by an objective and an
      infinitive (with or without to) or a participle, a
      dependent sentence, etc.
            And I knew that thou hearest me always. --John
                                               xi. 42.
            The monk he instantly knew to be the prior. --Sir
                                               W. Scott.
            In other hands I have known money do good.
                                               --Dickens.
{To know how}, to understand the manner, way, or means; to
   have requisite information, intelligence, or sagacity. How
   is sometimes omitted. `` If we fear to die, or know not to
   be patient.'' --Jer. Taylor.

\Know\, v. i.
1. To have knowledge; to have a clear and certain perception;
   to possess wisdom, instruction, or information; -- often
   with of.
         Israel doth not know, my people doth not consider.
                                               --Is. i. 3.
         If any man will do his will, he shall know of the
         doctrine, whether it be of God, or whether I speak
         of myself.                            --John vii.
                                               17.
         The peasant folklore of Europe still knows of
         willows that bleed and weep and speak when hewn.
                                               --Tylor.
2. To be assured; to feel confident.
{To know of}, to ask, to inquire. [Obs.] `` Know of your
   youth, examine well your blood.'' --Shak.