Duodécimo in english
Twelfth
pronunciation: twelfθ part of speech: adjective, noun
pronunciation: twelfθ part of speech: adjective, noun
In gestures
duodécimo (12º) = twelfth (12th).
Example: Now in its twelfth edition, (1982) Sears' List of Subject Headings was first written by Minnie Sears and published in 1923.