Is "lend me your ears" a metonymy?

"Friends, Romans, countrymen, lend me your ears." Mark Antony's funeral-speech opening in Shakespeare, Julius Caesar (1599), III.ii. Yes, that line is metonymy: "ears" stands in for attention, and substitution by association is the signature of metonymy (a trope where one thing names another it is closely connected to but is not part of). The complication is that some teachers reach for synecdoche, because ears are a body part and synecdoche is the part-for-whole figure. That argument loses on the test that separates the two figures, and below is what the test looks like when applied to this exact line.

Why is "lend me your ears" metonymy and not synecdoche?

Metonymy substitutes by association. The named thing and the meant thing belong to the same conceptual neighborhood without one being part of the other: the crown for the monarchy, the press for journalists, the White House for the executive branch. Synecdoche substitutes a part for a whole or a whole for a part: all hands on deck (hands for sailors), boots on the ground (boots for soldiers), Detroit for the American auto industry.

The diagnostic is short. Ask what the named thing is standing in for. If it is an associated abstraction or related concept, the figure is metonymy. If it is the larger entity the named thing physically belongs to, the figure is synecdoche.

Run the test on Antony's line. He is not asking the crowd for their bodies, or for the listeners considered as whole persons. He is asking for their attention, which is not a part of a person in any anatomical sense. Ears do the listening; listening is the act of paying attention; attention is what he wants. The substitution moves through association (ear → hearing → attention), not through part-and-whole. That is metonymy.

Merriam-Webster's FAQ on synecdoche addresses this exact phrase and lands the same call: "lend me your ears" is metonymy, because "ears" stands for the act of listening rather than for the listener.

Reading	What "ears" stands for	Figure
Metonymy reading	attention, the act of listening	metonymy (substitution by association)
Synecdoche reading	the listeners (whole person)	synecdoche (part for whole)

The metonymy reading is the one the line actually performs. The synecdoche reading is what the figure would do if Antony were asking for the audience itself, and he isn't.

Why do some sources call it synecdoche?

The objection is intuitive. Ears are anatomically part of a person, so when a phrase names ears and means something larger, the part-for-whole frame surfaces first. Synecdoche feels like the natural answer for any figure built on a body part, the way give me a hand or all hands on deck trains the ear to expect.

The objection collapses on inspection. The substitution in all hands on deck really is part-for-whole: hands name sailors, the larger entity the hands belong to. The substitution in lend me your ears is not. Ears here name attention, not the listener. Attention is not a thing a person is composed of; it is a thing a person directs. The relation is associative, not partitive.

This is one of the textbook cases where the metonymy/synecdoche line gets blurred in practice, and the disagreement on it isn't a sign that the dictionaries are wrong. The wordreference forum thread on this exact phrase walks through the synecdoche temptation and lands on metonymy after exactly the back-and-forth above. The Wikipedia entry on metonymy uses the line as a worked example of how the test gets applied. Both treat the question as legitimate; both arrive at the same answer.

A useful frame: some scholars treat synecdoche as a special case of metonymy (part-for-whole substitution being one kind of associative substitution), which dissolves the dispute by making both labels technically correct. Most working references keep the categories separate, which is the convention this article follows.

Is "lend me your ears" also a metaphor?

Not in the strict sense. Metaphor transfers qualities across unlike domains: life is a road, time is money, the world is a stage. The vehicle and the tenor live in different conceptual neighborhoods, and the figure works by importing properties from one to the other (a road has length and direction; life takes those on by the comparison).

Metonymy stays inside one neighborhood. Ears and attention are connected by ordinary causation: ears are the organs that do the hearing, hearing is how attention is received, so the named thing and the meant thing are linked by association, not by cross-domain transfer. No qualities are getting carried across. The reader is not asked to see attention as somehow ear-like.

Loose usage will sometimes call any non-literal expression a metaphor, and in casual writing that latitude is harmless. But within the figure-of-speech taxonomy, metaphor is reserved for cross-domain transfer, and metonymy is a separate trope. The difference between metaphor and metonymy is the cross-domain test: if the substitution requires you to see X as a kind of Y from a different category, it is metaphor; if X and Y are linked by ordinary association inside one category, it is metonymy.

What other phrases work the same way?

The same associative substitution shows up in journalism, common speech, and political reporting. The phrases below all pass the metonymy test (named thing stands for an associated concept, not for a larger whole the named thing is part of):

• all ears: ears stand for attentive listening, not for the listener. Used as a stock catchphrase across modern dialogue, including the Frasier sitcom run (NBC, 1993–2004), where Frasier's "I'm listening" lands the same beat in plain English.
• give me a hand: hand stands for help or assistance, not for the person. Everyday speech, no canonical attribution.
• the press: stands for the journalists and their published work, not for printing presses considered as a part of the news industry. Standard in political and journalistic writing.
• the crown: stands for the institution of the monarchy and its legal authority, not for the physical crown as a part of the monarch's regalia. Standard in British legal and political writing ("crown prosecutor," "crown lands").

In each case, the named thing is associated with the meant thing rather than being a piece of it. That is what makes the figure metonymy. The label matters less than seeing what the line is actually doing: a writer who reaches for lend me your ears is asking, in three words, for an act of attention that plain phrasing would take a full sentence to request. Recognizing that the substitution targets attention (and not bodies, and not listeners as such) is what lets the figure do its work.