perturb - Master This Word
Master this word with our 5-step learning method – Learn English in English
perturb Word Meanings
- to disturb or unsettle someone or something
- to cause confusion or anxiety
- to interfere with the normal state or function
perturb Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
perturb Phonetic & Pronunciation
UK
/pəˈtɜːb/
US
/pərˈtɜrb/
perturb Word Etymology
perturb = per- (through) + turb (to disturb). Origin: Latin → Old French → English. Imagine a calm pond disturbed by a stone thrown in, creating ripples that spread through the water.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Perturb is a versatile verb that conveys more than simple disturbance: it suggests a disturbance that unsettles a system, person, or process, often with a sense of subtle or ongoing disruption. You can perturb a calm mood with bad news, perturb a computation by changing input data, or perturb a plan by introducing unexpected factors. In science, to perturb a system means to introduce a small change that can affect outcomes; in psychology, it can describe anxiety that disrupts concentration. The word carries a slightly formal or technical tone, and is less common in everyday complaint than disturb or upset, but precise when you want to imply interference that shifts a state or function.
Usage Reminders
- Perturb is formal; use it for technical contexts or when describing meaningful interference.
- Pair perturb with a noun like mood, data, system, or plan to show what is being disrupted.
- Learn the related forms perturbing, perturbed, and the noun perturbation.
- Differentiate perturb from disturb: perturb implies interference with a state or function.
- In scientific writing, frame the perturbation as a small change that could affect outcomes.
- Avoid using perturb for everyday, loud annoyances.
Common Misconceptions
- Confusing perturb with disturb in everyday language
- Thinking perturb only refers to physical interference
- Believing perturb is interchangeable with 'perturbation' in all contexts
- Using perturb to describe emotional annoyance rather than interference
- Forgetting perturb can describe changes to data, systems, or plans
Thinking Differences
Perturb is a formal, technical verb in English; learners should note it often relates to small changes that interfere with a system or process, not casual noises or everyday annoyance. Typical mistakes include using it for loud sounds or emotional upset, or treating it as a synonym of disturb in all contexts.
Learning Tips
- Note that perturb often sounds formal or technical; use it when describing a small yet meaningful interference.
- Pair perturb with a noun like mood, data, system, or plan to show what is being disrupted.
- Learn the related forms perturbing and perturbed, and the noun perturbation.
- Differentiate perturb from disturb: perturb implies interference with a state or function.
- In scientific writing, frame the perturbation as a small change that could affect outcomes.
- Practice by describing hypothetical changes in a process and how they would perturb it.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of 'perturb'?
A.Sleep
B.Happy
C.Annoy
D.Eat
Step 2: Usage
In which sentence is 'perturb' used correctly?
A.The loud noise perturbed the sleeping baby.
B.I love to run in the park.
C.He ate a delicious meal.
D.She was happy about the news.
Step 3: Similar Words
Which word is most similar to 'perturb'?
A.Disturb
B.Calm
C.Delight
D.Amuse
Step 4: Opposite Words
What is the opposite of 'perturb'?
A.Annoy
B.Agitate
C.Calm
D.Upset
Step 5: Mastery
How would you use 'perturb' in a real-life situation?
A.Describing a noisy neighbor
B.Explaining a peaceful environment being disrupted
C.Talking about a delicious meal
D.Discussing favorite activities
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