What is the unspeakable word in anthem?

In the novel "Anthem" by Ayn Rand, the unspeakable word is the word "I." In the society depicted in the book, the concept of individuality and self-expression is completely suppressed, and the word "I" is seen as a symbol of selfishness and nonconformity. Citizens are forbidden from using the word "I" and must refer to themselves in the plural form "we." This is intended to enforce collectivism and destroy any sense of personal identity.

The protagonist of the novel, Equality 7-2521, discovers the word "I" in a hidden underground tunnel and learns the power of individualism and self-discovery. By reclaiming the word "I" and embracing his own identity, he defies the oppressive society and reclaims his freedom.

The unspeakable word serves as a symbol of the suppression of individualism and the importance of valuing oneself as an independent and autonomous being. It highlights the dangers of conforming to a society that seeks to control and restrict personal expression.