illud

Illud is a Latin word that functions as a demonstrative pronoun and, when used with a neuter noun, as a demonstrative determiner. It represents the neuter singular form of ille, and it is used to express “that” or “that thing” in reference to something already mentioned or assumed in the discourse. In practice, illud can stand alone as a pronoun or modify a neuter noun, as in illud tempus (that time).

In usage, illud is mainly anaphoric or deictic: it points to a particular thing, idea, or event under discussion and can add emphasis or specificity beyond a simple demonstrative pronoun. It is common in classical Latin literature, including philosophical, rhetorical, and narrative prose, where speakers and writers distinguish that specific thing from other referenced items. The word is typically contrasted with id, a more neutral pronoun meaning “it” or “that,” which lacks the emphatic demonstrative force of illud.

Grammatically, illud is part of the ille/illa/illud demonstrative family and declines like other Latin demonstratives, with forms that vary by case, number, and gender. Its neuter singular form illud is used with neuter nouns, aligning with Latin agreement rules. The term’s use can convey precision, emphasis, or a referential anchor within longer clauses or sentences.

See also: ille, illa, id, demonstratives in Latin.