Function of Simile
in Poetry
Learn to identify similes in poetry and explain how they function to create meaning, evoke emotion, and build imagery.
AP English Literature & Composition
What Is a Simile?
A simile is a figure of speech that makes an explicit comparison between two unlike things using a connecting word: most often "like" or "as." Unlike metaphor, a simile openly signals that a comparison is being drawn.
Anatomy of a Simile
Why Similes Matter in Poetry
Vivid Imagery
Similes paint concrete pictures that make abstract feelings or ideas visible and tangible to the reader.
Emotional Resonance
By linking the unfamiliar to the familiar, similes evoke specific emotional responses and deepen empathy.
Tonal Control
The choice of vehicle shapes the poem's tone: a simile can dignify, diminish, beautify, or disturb its subject.
How a Simile Functions
On the AP Literature exam, you are not simply asked to spot a simile. You must explain what the simile does: how it contributes to meaning, characterization, mood, or theme.
1
It transfers qualities. The vehicle lends its associations to the tenor, reshaping the reader's perception.
2
It creates emphasis. By pausing to compare, the poet slows the reader down and spotlights a key moment.
3
It reveals the speaker's perspective. The choice of comparison tells us how the speaker sees the world.
Simile vs. Metaphor
| Simile | Metaphor | |
|---|---|---|
| Signal word | "like" or "as" | None |
| Comparison type | Explicit: keeps both things separate | Implicit: merges two things into one |
| Effect | Invites the reader to notice a resemblance | Asserts an identity |
| Example | "Life is like a box of chocolates" | "Life is a box of chocolates" |
| Rhetorical distance | Greater: acknowledges the gap | Lesser: collapses the gap |
Types of Simile Functions
Descriptive
Makes an image more vivid. "The fog crept in like a grey cat."
Emotional
Evokes a feeling. "Her grief spread like ink through water."
Thematic
Reinforces a central idea. "Hope flickered like a candle in the wind."
Ironic / Subversive
Undercuts expectations. "He fought bravely, like a moth against glass."
How to Analyze a Simile
1
Identify the simile. Look for "like," "as," or "as if" connecting two unlike things.
2
Name the tenor and vehicle. What is being described? What is it compared to?
3
Identify the shared quality. What specific trait or association does the vehicle bring?
4
Explain the effect. How does this comparison shape imagery, tone, mood, or theme?
5
Connect to the larger poem. How does it reinforce or complicate the poem's central meaning?
Example 1: Robert Burns
O my Luve is like a red, red rose
That's newly sprung in June;
O my Luve is like the melody
That's sweetly played in tune. — Robert Burns, "A Red, Red Rose" (1794)
That's newly sprung in June;
O my Luve is like the melody
That's sweetly played in tune. — Robert Burns, "A Red, Red Rose" (1794)
Example 2: Langston Hughes
What happens to a dream deferred?
Does it dry up
like a raisin in the sun?
Or fester like a sore—
And then run?
Does it stink like rotten meat?
Or crust and sugar over—
like a syrupy sweet? — Langston Hughes, "Harlem" (1951)
Does it dry up
like a raisin in the sun?
Or fester like a sore—
And then run?
Does it stink like rotten meat?
Or crust and sugar over—
like a syrupy sweet? — Langston Hughes, "Harlem" (1951)
Example 3: The Epic Simile
As when the shudder of the west wind suddenly rising scatters across the water, and the water darkens beneath it, so darkened the ranks of Achaians and Trojans upon the plain.
— Homer, The Iliad, Book IV (trans. Lattimore)
Brief vs. Extended Similes
Brief Simile
A quick, concentrated comparison in a single phrase or line.
Effect: Creates a flash of imagery; propels the poem forward without slowing the pace.
"Life is like a broken-winged bird"
Effect: Creates a flash of imagery; propels the poem forward without slowing the pace.
"Life is like a broken-winged bird"
Extended (Epic) Simile
An elaborate comparison that develops over multiple lines, building a secondary scene.
Effect: Slows narrative, adds grandeur, creates a parallel world of meaning.
"As when autumn winds scatter leaves across the ground, so fell the warriors..."
Effect: Slows narrative, adds grandeur, creates a parallel world of meaning.
"As when autumn winds scatter leaves across the ground, so fell the warriors..."
Mapping Simile to Function
The AP Analysis Formula
1
Name the device: "The poet uses a simile comparing [tenor] to [vehicle]..."
2
Quote the text: Always embed the exact words in quotation marks.
3
Explain the shared quality: What connotation or association does the vehicle carry?
4
State the function: How does this comparison shape meaning, tone, characterization, or theme?
Common Mistakes to Avoid
✕ Identify Only
Simply saying "this is a simile" earns no AP credit. You must explain what it does and why it matters.
✕ Paraphrase, Not Analyze
Restating the comparison in your own words is not analysis. You must name the effect on the reader.
✕ Confuse with Metaphor
Calling a simile a metaphor (or vice versa) shows imprecise knowledge. Check for "like" or "as" first.
Summary: Simile Functions at a Glance
| Function | What It Does | Example Cue |
|---|---|---|
| Create Imagery | Makes abstract ideas concrete and visual | Sensory detail in vehicle |
| Establish Tone | Sets emotional atmosphere (tender, grim, ironic) | Connotation of vehicle |
| Develop Character | Reveals how speaker perceives the subject | Unusual or surprising vehicle |
| Reinforce Theme | Echoes the poem's central argument or concern | Repeated simile pattern |
| Control Pace | Extended simile slows; brief simile quickens | Length of comparison |
Question 1 of 5
"Shall I compare thee to a summer's day?
Thou art more lovely and more temperate."
— William Shakespeare, Sonnet 18
▼ Tap to read passage
Although Shakespeare's opening line poses a comparison using "compare," the poem technically rejects the simile. What is the function of this rejection?
By suggesting and then surpassing the simile, Shakespeare implies the beloved's beauty exceeds anything in nature — the rejection of comparison becomes the highest compliment.
Question 2 of 5
"Does it dry up / like a raisin in the sun? / Or fester like a sore— / And then run?"
— Langston Hughes, "Harlem"
▼ Tap to read passage
What is the primary function of stacking multiple similes in these lines?
Each simile adds a different sensory dimension (visual, tactile, olfactory, gustatory), creating a cumulative sense of decay and urgency that reinforces the poem's social protest.
Question 3 of 5
In the simile "He fought bravely, like a moth against glass," the vehicle (moth against glass) primarily functions to:
A moth beating against glass is frantic but futile — it will never break through. The simile creates irony, undercutting the surface praise ("bravely") with an image of helplessness.
Question 4 of 5
Which of the following correctly identifies the three parts of a simile?
A simile consists of the tenor (the thing described), the connector ("like" or "as"), and the vehicle (the thing it is compared to). These are the structural building blocks of every simile.
Question 5 of 5
"I wandered lonely as a cloud
That floats on high o'er vales and hills"
— William Wordsworth, "I Wandered Lonely as a Cloud"
▼ Tap to read passage
Wordsworth compares himself to a cloud. What is the primary function of this simile in establishing the poem's opening?
A cloud drifting "on high" suggests solitude without distress — gentle, weightless, detached. This simile establishes a contemplative tone and positions the speaker as a passive observer of nature, setting up the poem's later encounter with the daffodils.