NOUN (3)

1. apprehension about what is going to happen;

2. an uncertain cognitive state;
- Example: "the matter remained in suspense for several years"

3. excited anticipation of an approaching climax;
- Example: "the play kept the audience in suspense"

The Collaborative International Dictionary of English v.0.48:

Suspense \Sus*pense"\, a. [F. suspens, L. suspensus, p. p. of
   suspendere. See Suspend.]
   1. Held or lifted up; held or prevented from proceeding.
      [Obs.]
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            [The great light of day] suspense in heaven.
                                                  --Milton.
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   2. Expressing, or proceeding from, suspense or doubt. [Obs.]
      "Expectation held his look suspense." --Milton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Suspense \Sus*pense"\, n. [From F. suspens, a. See Suspense,
   a.]
   1. The state of being suspended; specifically, a state of
      uncertainty and expectation, with anxiety or apprehension;
      indetermination; indecision; as, the suspense of a person
      waiting for the verdict of a jury.
      [1913 Webster]

            Ten days the prophet in suspense remained. --Denham.
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            Upon the ticklish balance of suspense. --Cowper.
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   2. Cessation for a time; stop; pause.
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            A cool suspense from pleasure and from pain. --Pope.
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   3. [Cf. F. suspense.] (Law) A temporary cessation of one's
      right; suspension, as when the rent or other profits of
      land cease by unity of possession of land and rent.
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   Suspense account (Bookkeeping), an account in which
      receipts or disbursements are temporarily entered until
      their proper position in the books is determined.
      [1913 Webster]

WordNet (r) 3.0 (2006):

suspense
    n 1: apprehension about what is going to happen
    2: an uncertain cognitive state; "the matter remained in
       suspense for several years"
    3: excited anticipation of an approaching climax; "the play kept
       the audience in suspense"