See an image that represents "tlacuilo" in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).
in tlacuilo, tlilli, tlapalli, tlilatl, ialuil, toltecatl tlachichiuhqui, tlatecullaliani, tlateculaniani, tlalilani, tlilpatlac, tlapaltecini tlapallaliani. = The scribe: writings, ink [are] his special skills. [He is] a craftsman, an artist, a user of charcoal, a drawer with charcoal; a painter who dissolves colors, grinds pigments, uses colors. (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 10 -- The People, No. 14, Part 11, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 28.
quintemozq Omentin tipotantosme no omentin mayordomosme auh no çe onyez amatlacuillo = they will search for two diputados; also two mayordormos. Here will also be a notary.
Fray Alonso de Molina, Nahua Confraternities in Early Colonial Mexico: The 1552 Nahuatl Ordinances of fray Alonso de Molina, OFM, ed. and trans., Barry D. Sell (Berkeley: Academy of American Franciscan History, 2002), 100–101.
tlacuilo = scribe or painter
Susan Kellogg, Law and the Transformation of Aztec Culture, 1500–1700 (Norman and London: University of Oklahoma Press, 1995), 227.
Tlàcuilòque can mean either they are scribes or they wrote. In other words the plural noun can be confused with the plural third person preterite of the verb.
Michel Launey, An Introduction to Classical Nahuatl, translated and adapted by Christopher MacKay (Cambridge: Cambridge University Press, 2011), 160.
[tla]cuiloqui = scribe (Tepetlaoztoc, sixteenth century)
Barbara J. Williams and H. R. Harvey, The Códice de Santa María Asunción: Facsimile and Commentary: Households and Lands in Sixteenth-Century Tepetlaoztoc (Salt Lake City: University of Utah Press, 1997), 71.