The article is concerned with five groups of the phenomenon of the 'thing' in twentieth-century literature and philosophy: the 'avant-garde thing', which is either a shocking element in the artistic picture or the name of a genre; the 'phenomenological thing', which belongs to either the programmatic sobriety of Husserl or the picturesque hermeneutic facticity of Heidegger; the 'Structuralist thing', which in the work of Mukarovsky is either the artefact functioning as a sign or the 'work-thing' as the reverse of the 'work-sign; the 'representing thing', which in the work of Foucault reveals the semiotics of the dimension line of the history of the sign, and in the work of Oliver Bakos from the dimension line of the time and truth of the poetic text; the 'reifying thing' in George Perec (Les choses) evokes the trivializing abstraction, and in Alberto Moravia ('La chose') intimately concrete uniqueness.