What do idioms and figures of speech such as metaphor and simile really mean, and how do you understand and use them well?
Understand and use idioms and figurative language (metaphor, simile, personification) accurately and for effect
How to understand and use idioms and figurative language (metaphor, simile, personification) in O-Level English: reading non-literal meaning from context and using figures of speech for effect without overdoing them.
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What this dot point is asking
This dot point is about non-literal language: idioms and figures of speech whose meaning is not the plain sum of their words. An idiom is a fixed expression with a meaning you cannot work out literally ("a piece of cake" has nothing to do with cake). Figurative language uses comparison and imagery, mainly metaphor, simile and personification, to create a picture or feeling. You need to do two things: understand these expressions when you read them (a comprehension skill) and use them accurately and for effect in your own writing (a writing skill). Both reward a reader who can move beyond the literal.
The answer
Idioms have a fixed, non-literal meaning
An idiom is a set phrase whose meaning is agreed by convention and cannot be deduced word by word. "It is raining cats and dogs" means it is raining heavily; "to hit the books" means to study hard; "to be in hot water" means to be in trouble. Because the meaning is fixed and not literal, idioms must be learned as whole units, and in comprehension you must give the agreed meaning, not a literal reading. A candidate who explains "a piece of cake" as "a slice of dessert" has read it literally and missed the point.
Metaphor and simile compare
The two most common figures of speech both work by comparison:
- Simile compares using "like" or "as": "as brave as a lion", "her smile was like sunshine". The signal words "like" or "as" make it a simile.
- Metaphor says one thing is another, without "like" or "as": "he is a lion in battle", "the classroom was a zoo". It states the comparison directly, and we understand it figuratively.
Both create a vivid image by linking the thing described to something with a strong, shared quality (bravery, chaos, warmth). When you read one, ask what quality the comparison transfers; when you write one, choose a comparison that fits the quality you want to convey.
Personification gives human qualities to things
Personification describes something non-human as if it had human or animal qualities or actions: "the wind howled", "the waves clawed at the shore", "the old house groaned". It makes description vivid and can create atmosphere, often suggesting threat, life or mood. In comprehension, name it as personification and explain the effect (here, that the sea seems violent or alive); in writing, use it to bring a scene to life.
Use figures of speech for effect, not decoration
In your own writing, figurative language earns marks when it is fresh, fits the moment and adds a clear image, especially in descriptive and narrative work. But it backfires when it is overdone or clumsy. Too many similes in a row clutter the writing; tired clichés ("as cold as ice", "every cloud has a silver lining") add nothing because the reader has met them a thousand times; and a comparison that does not fit ("the gentle breeze roared like a lion") confuses. Use figurative language sparingly and purposefully, choosing images that genuinely sharpen the picture.
Examples in context
Example 1. The same idea, literal versus figurative. A writer could state plainly, "The soldiers were very tired but kept marching." Using figurative language, the same idea becomes, "The soldiers were on their last legs, yet they dragged themselves onward like sleepwalkers." The idiom "on their last legs" and the simile "like sleepwalkers" turn a flat statement into a vivid one, helping the reader feel the exhaustion. In comprehension, a candidate must read "on their last legs" as utterly exhausted, not as a comment on their actual legs, which is the test the question is built around.
Example 2. Personification creating atmosphere. In a descriptive piece, "the storm arrived" is plain, but "the storm prowled over the hills, snarling and tearing at the rooftops" personifies the storm as a wild animal. The human-and-animal verbs ("prowled", "snarling", "tearing") create a menacing atmosphere and make the storm feel alive and dangerous. This is figurative language doing real work: a single well-chosen image conveys threat far more powerfully than the adjective "scary", which is why examiners reward purposeful figures of speech over plain or clichéd description.
Try this
Cue. Explain the idiom in "After breaking the vase, he was in hot water with his parents." It is non-literal: "in hot water" means in trouble, so the sentence says he was in trouble with his parents for breaking the vase, not literally in hot water.
Cue. Identify and explain the device in "The autumn leaves danced across the playground." This is personification: leaves cannot literally dance, so the writer gives them a human action to suggest light, lively, swirling movement, making the scene vivid.
Cue. Turn the plain sentence "She was very nervous before the speech" into writing that uses one figure of speech for effect. Choose a fitting image, for example the simile "Her stomach churned like a washing machine before the speech", which conveys the nervousness more vividly than the adjective alone.
Exam-style practice questions
Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Original4 marksExplain the meaning of each idiom or figure of speech as used in context. (a) After the long day, the workers were 'on their last legs'. (b) The exam was 'a piece of cake' for her. (c) The angry waves 'clawed at the shore'. (d) News of the win spread 'like wildfire'. [4 marks]Show worked answer →
(a) "On their last legs" means extremely tired and almost unable to continue; here it shows the workers were exhausted after the long day.
(b) "A piece of cake" means very easy; here it shows she found the exam very easy.
(c) "Clawed at the shore" is personification: the waves are described as if they had claws like an animal, suggesting the sea was violent and aggressive.
(d) "Like wildfire" is a simile meaning very quickly and uncontrollably; here it shows the news spread rapidly to many people.
Markers reward the non-literal meaning of each expression (not a literal reading), naming the figure of speech where asked (personification in (c), simile in (d)), and an explanation that fits the context rather than a memorised definition alone.
Original3 marksExplain the difference between a simile and a metaphor, giving one clear example of each, and state one effect figurative language has on a reader. [3 marks]Show worked answer →
Simile: a comparison that uses "like" or "as" to say one thing is similar to another. Example: "Her voice was as smooth as silk." The word "as" signals the comparison.
Metaphor: a comparison that says one thing is another, without "like" or "as". Example: "Her voice was silk." It does not say "like silk"; it states the voice is silk, which we understand figuratively.
Effect on the reader: figurative language creates a vivid mental picture, making the description more memorable and helping the reader feel or imagine the quality being described.
Markers reward a correct definition of each with the key difference (the presence or absence of "like" or "as"), a clear example of each, and a sensible effect such as creating a vivid image.
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