surprise

surprise is a Noun

Definition:

[1] The act of coming upon, or taking, unawares; the act of seizing unexpectedly; surprisal; as, the fort was taken by surprise.

[2] The state of being surprised, or taken unawares, by some act or event which could not reasonably be foreseen; emotion excited by what is sudden and strange; a suddenly excited feeling of wonder or astonishment. Pure surprise and fear Made me to quit the house. Shak.

[3] Anything that causes such a state or emotion.

[4] A dish covered with a crust of raised paste, but with no other contents. [Obs.] King. Surprise party, a party of persons who assemble by mutual agreement, and without invitation, at the house of a common friend. [U.S.] Bartlett.