Source : Webster's Revised Unabridged Dictionary (1913)

Almost \Al"most\, adv. [AS. ealm[ae]st, [ae]lm[ae]st, quite the
   most, almost all; eal (OE. al) all + m?st most.]
   Nearly; well nigh; all but; for the greatest part.

         Almost thou persuadest me to be a Christian. --Acts
                                                  xxvi. 28.

   {Almost never}, scarcely ever.

   {Almost nothing}, scarcely anything.

Source : WordNet®

almost
     adv : (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}, {most}, {all but}, {nearly}, {near}, {nigh}, {virtually},
            {well-nigh}]