Source : Webster's Revised Unabridged Dictionary (1913)

Nigh \Nigh\, prep.
   Near to; not remote or distant from. ``was not this nigh
   shore?'' --Shak.

Nigh \Nigh\, a. [Compar. {Nigher}; superl. {Nighest}, or
   {Next}.] [OE. nigh, neigh, neih, AS. ne['a]h, n?h; akin to D.
   na, adv., OS. n[=a]h, a., OHG. n[=a]h, G. nah, a., nach to,
   after, Icel. n[=a] (in comp.) nigh, Goth. n?hw, n?hwa, adv.,
   nigh. Cf. {Near}, {Neighbor}, {Next}.]
   1. Not distant or remote in place or time; near.

            The loud tumult shows the battle nigh. --Prior.

   2. Not remote in degree, kindred, circumstances, etc.;
      closely allied; intimate. ``Nigh kinsmen.'' --Knolles.

            Ye . . . are made nigh by the blood of Christ.
                                                  --Eph. ii. 13.

   Syn: Near; close; adjacent; contiguous; present; neighboring.

Nigh \Nigh\, adv. [AS. ne['a]h, n?h. See {Nigh}, a.]
   1. In a situation near in place or time, or in the course of
      events; near.

            He was sick, nigh unto death.         --Phil. ii.
                                                  27.

            He drew not nigh unheard; the angel bright, Ere he
            drew nigh, his radiant visage turned. --Milton.

   2. Almost; nearly; as, he was nigh dead.

Nigh \Nigh\, v. t. & i.
   To draw nigh (to); to approach; to come near. [Obs.] --Wyclif
   (Matt. iii. 2).

Source : WordNet®

nigh
     adv 1: near in time or place or relationship; "as the wedding day
            drew near"; "stood near the door"; "don't shoot until
            they come near"; "getting near to the true
            explanation"; "her mother is always near"; "The end
            draws nigh"; "the bullet didn't come close"; "don't
            get too close to the fire" [syn: {near}, {close}]
     2: (of actions or states) slightly short of or not quite
        accomplished; `near' is sometimes used informally for
        `nearly' and `most' is sometimes used informally for
        `almost'; "the job is (just) about done"; "the baby was
        almost asleep when the alarm sounded"; "we're almost
        finished"; "the car all but ran her down"; "he nearly
        fainted"; "talked for nigh onto 2 hours"; "the recording
        is well-nigh perfect"; "virtually all the parties signed
        the contract"; "I was near exhausted by the run"; "most
        everyone agrees" [syn: {about}, {just about}, {almost}, {most},
         {all but}, {nearly}, {near}, {virtually}, {well-nigh}]

nigh
     adj 1: being on the left side; "the near or nigh horse is the one
            on the left"; "the animal's left side is its near or
            nigh side" [syn: {near(a)}, {nigh(a)}]
     2: near in space or time