The Lover's Dictionary is a novel by American author David Levithan, published January 4, 2011 by Farrar, Straus, and Giroux.

These short entries provide insight into the ups and downs of their romantic relationship, revealing the couple's problems with alcoholism and infidelity.

The story does not unfold in chronological order; instead, it is arranged alphabetically by dictionary entries that give glimpses into the joys and struggles the characters face over the course of their relationship.

[1] The idea for the book was inspired by a Valentine's Day tradition in which Levithan writes a story for a group of family members and friends.

[7] In their review, Kirkus noted, "While gimmicky and saddled with a narrator who takes himself a bit too seriously, this adult effort from one of the authors of Nick and Nora’s Infinite Playlist (2006) still manages to hit some universal truths about love’s perfect imperfections.