Four Letter Word (Kim Wilde song)

"Four Letter Word" is the fourth single from English pop singer Kim Wilde's sixth studio album, Close (1988). The song was issued as a single in November 1988, marking Wilde's last release of a track written by her father and brother, who had written the majority of her early hits together. "Four Letter Word" became Wilde's third consecutive UK top-10 single from Close, reaching number six. It also peaked within the top 10 in Belgium, Denmark, Ireland, and the Netherlands. An extended version as well as a "late night" remix of "Four Letter Word" were released on the 12-inch and CD singles.

Track listings
7-inch and Japanese mini-CD single
 * 1) "Four Letter Word"
 * 2) "She Hasn't Got Time for You '88"

12-inch single
 * A1. "Four Letter Word" (extended version) – 5:52
 * B1. "Four Letter Word" (late night mix) – 3:52
 * B2. "She Hasn't Got Time for You '88" – 4:36

CD and European mini-CD single
 * 1) "Four Letter Word" – 4:01
 * 2) "She Hasn't Got Time for You '88" – 4:36
 * 3) "Four Letter Word" (extended version) – 5:46