Source : Webster's Revised Unabridged Dictionary (1913)

Virtually \Vir"tu*al*ly\, adv.
   In a virtual manner; in efficacy or effect only, and not
   actually; to all intents and purposes; practically.

Source : WordNet®

virtually
     adv 1: (intensifier before a figurative expression) without
            exaggeration; "our eyes were literally pinned to TV
            during the Gulf war" [syn: {literally}]
     2: in essence or effect but not in fact; "the strike virtually
        paralyzed the city"; "I'm virtually broke"
     3: (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}, {nigh}, {well-nigh}]