tonight(n = noun.time) Array - the present or immediately coming night; Array
is a kind of nowadays, present

   tonight(r = adv.all) this evening, this night - during the night of the present day; "drop by tonight"

1.  On this present or coming night. [1913 Webster]

2.  On the last night past. Shak. [1913 Webster]

   The present or the coming night; the night after the present day. [1913 Webster]

tonight, adv. & n.
--adv. on the present or approaching evening or night.
--n. the evening or night of the present day.

Etymology:
TO + NIGHT: cf. TODAY