Wordnet 3.0
NOUN (2)
1.
a candidate for public office whose name does not appear on the ballot and so must be written on the ballot by the voters;
[syn: write-in candidate, write-in]
2. a vote cast by writing in the name of a candidate who is not listed on the ballot;
WordNet (r) 3.0 (2006):
write-in
n 1: a candidate for public office whose name does not appear on
the ballot and so must be written on the ballot by the
voters [syn: write-in candidate, write-in]
2: a vote cast by writing in the name of a candidate who is not
listed on the ballot