From WordNet (r) 3.0 (2006) [wn]:
already
adv 1: prior to a specified or implied time; "she has already
graduated"
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Already \Al*read"y\, adv. [All (OE. al) + ready.]
Prior to some specified time, either past, present, or
future; by this time; previously. "Joseph was in Egypt
already." --Exod. i. 5.
[1913 Webster]
I say unto you, that Elias is come already. --Matt.
xvii. 12.
[1913 Webster]
Note: It has reference to past time, but may be used for a
future past; as, when you shall arrive, the business
will be already completed, or will have been already
completed.
[1913 Webster]