Qm is one of the positions in a Namz and is here used by synecdoche for it.
Whether it be synecdoche, metaphor, or metonymy, there is still a figure.
Metalepsis carries us so far, but synecdoche must supplement it.
I did send for you to draw me a device, an Imprezza, by Synecdoche a Mott.
And apparently various causes might produce this Synecdoche.
Synecdoche puts a part for the whole, or a whole for the part; as, "The harbor was crowded with masts."
Metonymy and Synecdoche are nearly related and in this poem the examples are numerous.
Blind mouths: 'mouths' is used, by synecdoche, for gluttons, as the five preceding verses show.
Synecdoche is that figure of speech in which a part is put for the whole, or the whole for a part.
Synecdoche is a species of metonymy, and has the same effect of giving vividness.