IELTS Vocabulary & Collocations by Topic – Free Generator
Search or filter by topic to find natural, band 8.0+ collocations and phrasal verbs for IELTS Writing and Speaking. Every phrase comes with a definition and an example sentence.
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IELTS Environment vocabulary & collocations
12 phrases
Collocation
carbon footprint
the amount of greenhouse gases produced by an individual or organisation
“Reducing our carbon footprint requires systemic change, not just individual effort.”
Collocation
renewable energy sources
energy from resources like wind or solar that naturally replenish
“Governments must invest heavily in renewable energy sources to curb reliance on fossil fuels.”
Collocation
greenhouse gas emissions
gases released into the atmosphere that trap heat and drive warming
“Industrial activity remains the largest contributor to greenhouse gas emissions worldwide.”
Collocation
environmental degradation
the gradual destruction of the natural environment
“Unchecked deforestation has accelerated environmental degradation across the region.”
Collocation
biodiversity loss
the decline in the variety of plant and animal life in an area
“Habitat destruction is the primary driver of biodiversity loss.”
Collocation
sustainable development
growth that meets present needs without compromising future generations
“Sustainable development balances economic growth with ecological preservation.”
Collocation
ecological footprint
the impact of human activity measured in the natural resources it consumes
“A meat-heavy diet significantly increases a person's ecological footprint.”
Collocation
natural resource depletion
the exhaustion of raw materials found in nature
“Overconsumption has led to alarming rates of natural resource depletion.”
Phrasal verb
phase out
to gradually stop using something
“Many nations plan to phase out coal-fired power plants by 2035.”
Phrasal verb
cut back on
to reduce the amount of something used or consumed
“Households are being urged to cut back on single-use plastics.”
Phrasal verb
clean up
to remove pollution or waste from a place
“Volunteers spent the weekend cleaning up the polluted riverbank.”
Phrasal verb
die out
to become extinct
“Several coral species are dying out due to rising ocean temperatures.”
IELTS Technology vocabulary & collocations
12 phrases
Collocation
cutting-edge technology
the most advanced, up-to-date technology available
“Cutting-edge technology has transformed the way we diagnose disease.”
Collocation
digital divide
the gap between those with and without reliable access to technology
“The digital divide continues to disadvantage rural communities.”
Collocation
artificial intelligence
computer systems capable of performing tasks that normally require human intelligence
“Artificial intelligence is increasingly used to automate repetitive administrative tasks.”
Collocation
technological advancement
ongoing progress and innovation in technology
“Rapid technological advancement has reshaped nearly every industry.”
Collocation
data privacy
the protection of an individual's personal information online
“Growing concern over data privacy has prompted stricter regulation.”
Collocation
screen addiction
excessive, compulsive use of digital devices
“Screen addiction among teenagers has become a pressing public health issue.”
Collocation
automation of labour
the replacement of human workers with machines or software
“The automation of labour threatens to displace millions of low-skilled workers.”
Collocation
technological dependency
an over-reliance on technology in everyday life
“Technological dependency has arguably eroded our capacity for independent thought.”
Phrasal verb
roll out
to launch or introduce a product or service
“The company plans to roll out the update across all devices next month.”
Phrasal verb
log into
to gain access to a digital account or system
“Users must log into a secure portal before accessing sensitive data.”
Phrasal verb
back up
to save a copy of data in case the original is lost
“Employees are required to back up their files daily.”
Phrasal verb
crack down on
to take strict action against something undesirable
“Authorities are cracking down on cybercrime with new legislation.”
IELTS Education vocabulary & collocations
12 phrases
Collocation
rote learning
memorisation through repetition rather than genuine understanding
“Critics argue that rote learning stifles creativity and independent thought.”
Collocation
academic achievement
success in scholastic performance
“Parental involvement is strongly correlated with academic achievement.”
Collocation
lifelong learning
the ongoing, voluntary pursuit of knowledge throughout one's life
“In a rapidly changing job market, lifelong learning has become essential.”
Collocation
curriculum overhaul
a major restructuring of what is taught in schools
“Educators are calling for a curriculum overhaul to reflect twenty-first-century skills.”
Collocation
extracurricular activities
activities pursued outside the standard academic curriculum
“Extracurricular activities foster teamwork and time-management skills.”
Collocation
higher education
university-level education
“Access to higher education remains unequal across socioeconomic groups.”
Collocation
standardised testing
uniform tests administered to all students under the same conditions
“Standardised testing has been criticised for narrowing the curriculum.”
Collocation
vocational training
practical training for a specific trade or occupation
“Vocational training equips students with employable, hands-on skills.”
Phrasal verb
drop out of
to quit a course or programme before completing it
“Financial pressure often forces students to drop out of university.”
Phrasal verb
catch up on
to reach the same level as others after falling behind
“Tutoring programmes help disadvantaged students catch up on lost learning.”
Phrasal verb
sign up for
to enrol or register for something
“Thousands of adults sign up for evening classes each year.”
Phrasal verb
brush up on
to improve knowledge or a skill that has become rusty
“Many professionals return to brush up on skills that have become outdated.”
active participation in the life of a local community
“Local governments are working to increase community engagement.”
Phrasal verb
grow up
to develop from childhood into adulthood
“Children who grow up in bilingual households often develop stronger cognitive flexibility.”
Phrasal verb
look after
to take care of someone
“Grandparents frequently look after grandchildren while parents work.”
Phrasal verb
drift apart
to gradually become less close to someone
“Close-knit communities can drift apart due to urban migration.”
Phrasal verb
bring up
to raise and care for a child
“Attitudes towards how children should be brought up vary widely across cultures.”
Why Topic-Specific Vocabulary Matters for IELTS
Lexical Resource is one of four scoring criteria in both IELTS Writing and Speaking, and it accounts for 25% of your band score in each. Examiners aren’t just checking whether you know “big words” — they’re assessing whether you can use a wide range of vocabulary naturally, accurately, and appropriately for the topic in front of you.
Generic vocabulary (“a good way,” “very important,” “a big problem”) caps how high your Lexical Resource score can go, no matter how well-organised your essay is. Topic-specific collocations — word pairings that native speakers use together instinctively, like “environmental degradation” rather than “bad things happening to nature” — signal genuine command of English.
In Speaking specifically, the official band descriptors note that Band 7 requires “some less common and idiomatic vocabulary,” while Band 8–9 candidates use idiomatic language “naturally and effectively.” That’s exactly what the phrasal verbs in this generator are for.
Frequently Asked Questions About IELTS Vocabulary
What is Lexical Resource in IELTS?
Lexical Resource is one of four marking criteria in IELTS Writing and Speaking, assessing the range, accuracy, and appropriacy of your vocabulary. It accounts for 25% of your score in each of those two skills.
How many collocations should I use in an essay?
There’s no fixed number. Examiners reward natural, accurate use over quantity — forcing in advanced phrases where they don’t fit can lower your score for unnatural language.
What’s the difference between a collocation and a phrasal verb?
A collocation is a natural pairing of words, such as “make a decision.” A phrasal verb combines a verb with a preposition or adverb to create a new meaning, such as “phase out.”
Does using advanced vocabulary guarantee a higher band score?
No. Examiners reward natural, accurate, and appropriate use of vocabulary. Misused advanced words can actually lower your Lexical Resource score.
How can I practise using new collocations naturally?
Write full sentences using new phrases in context, use them in speaking practice, and study real usage examples rather than memorising isolated word lists.
Tips for Using These Phrases Naturally
Learn phrases in context, not isolation: Study the example sentence alongside the phrase, not just the phrase on its own
Use one or two per paragraph: Packing in too many advanced collocations at once tends to sound forced rather than fluent
Say them out loud: Practising phrasal verbs aloud builds the natural rhythm and stress examiners listen for in Speaking
Pair vocabulary with real opinions: Advanced phrases land best when they support an idea you’d actually argue, not a memorised template
Check the register: Some phrases suit formal Writing Task 2, others suit conversational Speaking — this tool marks each as a Collocation or Phrasal Verb to help you choose