Source : Webster's Revised Unabridged Dictionary (1913)

.
      (e) To push from land; as, to put off a boat.

   {To put on} or {upon}.
      (a) To invest one's self with, as clothes; to assume.
          ``Mercury . . . put on the shape of a man.''
          --L'Estrange.
      (b) To impute (something) to; to charge upon; as, to put
          blame on or upon another.
      (c) To advance; to promote. [Obs.] ``This came handsomely
          to put on the peace.'' --Bacon.
      (d) To impose; to inflict. ``That which thou puttest on
          me, will I bear.'' --2 Kings xviii. 14.
      (e) To apply; as, to put on workmen; to put on steam.
      (f) To deceive; to trick. ``The stork found he was put
          upon.'' --L'Estrange.
      (g) To place upon, as a means or condition; as, he put him
          upon bread and water. ``This caution will put them
          upon considering.'' --Locke.
      (h) (Law) To rest upon; to submit to; as, a defendant puts
          himself on or upon the country. --Burrill.

   {To put out}.
      (a) To eject; as, to put out and intruder.
      (b) To put forth; to shoot, as a bud, or sprout.
      (c) To extinguish; as, to put out a candle, light, or
          fire.
      (d) To place at interest; to loan; as, to put out funds.
      (e) To provoke, as by insult; to displease; to vex; as, he
          was put out by my reply. [Colloq.]
      (f) To protrude; to stretch forth; as, to put out the
          hand.
      (g) To publish; to make public; as, to put out a pamphlet.
      (h) To confuse; to disconcert; to interrupt; as, to put
          one out in reading or speaking.
      (i) (Law) To open; as, to put out lights, that is, to open
          or cut windows. --Burrill.
      (j) (Med.) To place out of joint; to dislocate; as, to put
          out the ankle.
      (k) To cause to cease playing, or to prevent from playing
          longer in a certain inning, as in base ball.

   {To put over}.
      (a) To place (some one) in authority over; as, to put a
          general over a division of an army.
      (b) To refer.

                For the certain knowledge of that truth I put
                you o'er to heaven and to my mother. --Shak.
      (c) To defer; to postpone; as, the court put over the
          cause to the next term.
      (d) To transfer (a person or thing) across; as, to put one
          over the river.

   {To put the hand} {to or unto}.
      (a) To take hold of, as of an instrument of labor; as, to
          put the hand to the plow; hence, to engage in (any
          task or affair); as, to put one's hand to the work.
      (b) To take or seize, as in theft. ``He hath not put his
          hand unto his neighbor's goods.'' --Ex. xxii. 11.

   {To put through}, to cause to go through all conditions or
      stages of a progress; hence, to push to completion; to
      accomplish; as, he put through a measure of legislation;
      he put through a railroad enterprise. [U.S.]

   {To put to}.
      (a) To add; to unite; as, to put one sum to another.
      (b) To refer to; to expose; as, to put the safety of the
          state to hazard. ``That dares not put it to the
          touch.'' --Montrose.
      (c) To attach (something) to; to harness beasts to.
          --Dickens.

   {To put to a stand}, to stop; to arrest by obstacles or
      difficulties.

   {To put to bed}.
      (a) To undress and place in bed, as a child.
      (b) To deliver in, or to make ready for, childbirth.

   {To put to death}, to kill.

   {To put together}, to attach; to aggregate; to unite in one.
      

   {To put this and that} (or {two and two}) {together}, to draw
      an inference; to form a correct conclusion.

   {To put to it}, to distress; to press hard; to perplex; to
      give difficulty to. ``O gentle lady, do not put me to
      't.'' --Shak.

   {To put to rights}, to arrange in proper order; to settle or
      compose rightly.

   {To put to the sword}, to kill with the sword; to slay.

   {To put to trial}, or {on trial}, to bring to a test; to try.
      

   {To put trust in}, to confide in; to repose confidence in.

   {To put up}.
      (a) To pass unavenged; to overlook; not to punish or
          resent; to put up with; as, to put up indignities.
          [Obs.] ``Such national injuries are not to be put
          up.'' --Addison.
      (b) To send forth or upward; as, to put up goods for sale.
      (d) To start from a cover, as game. ``She has been
          frightened; she has been put up.'' --C. Kingsley.
      (e) To hoard. ``Himself never put up any of the rent.''
          --Spelman.
      (f) To lay side or preserve; to pack away; to store; to
          pickle; as, to put up pork, beef, or fish.
      (g) To place out of sight, or away; to put in its proper
          place; as, put up that letter. --Shak.
      (h) To incite; to instigate; -- followed by to; as, he put
          the lad up to mischief.
      (i) To raise; to erect; to build; as, to put up a tent, or
          a house.
      (j) To lodge; to entertain; as, to put up travelers.

   {To put up a job}, to arrange a plot. [Slang]

   Syn: To place; set; lay; cause; produce; propose; state.

   Usage: {Put}, {Lay}, {Place}, {Set}. These words agree in the
          idea of fixing the position of some object, and are
          often used interchangeably. To put is the least
          definite, denoting merely to move to a place. To place
          has more particular reference to the precise location,
          as to put with care in a certain or proper place. To
          set or to lay may be used when there is special
          reference to the position of the object.

Source : WordNet®

on trial
     adj : in the process of being tested or tried