The lexicon of a sign language is the collection of the signs that the signers of that language know. It includes information about how the signs are articulated, what they mean, and what their morpho-syntactic properties are.
This part of the grammar describes these properties of the TÄ°D signs, and is organized in three chapters. The first chapter focuses on the signs in the native lexicon, while the second chapter focuses on the signs in the non-native lexicon. The last chapter provides examples and describes specific properties of each part of speech observed in TÄ°D.