Which stylistic figure does the utterance The saddest words of tongue or pen (I. Shaw) instantiate?

Question

Which stylistic figure does the utterance  The saddest words of tongue or pen  (I. Shaw) instantiate?

Accepted Answer

metonymy  (concrete for abstract),  synecdoche  (part for whole)

Answer

metonymy  (object for user),  synecdoche  (whole for part)

Answer

synecdoche  (part for whole)

Answer

metonymy  (controller for controlled)

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