Lexical Resource and Vocabulary Range

Lexical Resource is assessed on your ability to use vocabulary flexibly, precisely, and with natural collocations. The examiner is not looking for obscure or sophisticated words — they are looking for evidence that you can communicate complex ideas effectively and that you can paraphrase, use idiomatic language, and choose words appropriately.

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What the Band Descriptors Say

What strong vocabulary use sounds like in the speaking test

• Vocabulary is used flexibly across topic shifts — the candidate doesn't sound rehearsed when the conversation moves from familiar to less familiar ground.
• Less common and idiomatic words appear naturally where they fit, not crow-barred in for effect.
• Paraphrase happens automatically: when one expression doesn't quite land, the candidate rewords smoothly without breaking flow.
• Word choices are precise — the candidate picks the term that fits the meaning rather than the closest general word they know.

Common reasons lexical resource caps a candidate at Band 6

• A small core of everyday vocabulary stretched to cover every topic, with general nouns ("thing", "stuff", "people") doing too much work.
• Idioms or "Band 7+ phrases" memorised and produced unnaturally, often misused.
• Inability to paraphrase: when stuck on one expression, the candidate stalls or repeats the same word.
• Errors in word formation (adjective/adverb/noun forms), collocation ("make a research"), and word choice that obscure precise meaning.

The practical shifts that move a candidate from Band 6 to Band 7+: flexibility, less common vocabulary, idiomatic language used naturally, and effective paraphrasing. Refer to the official Cambridge IELTS Speaking Lexical Resource public band descriptors for the authoritative criteria.

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Strategy 1: Topic-Specific Vocabulary

For each common IELTS topic, build a vocabulary bank of precise, less common terms:

Education

Basic (Band 5-6)	Precise (Band 7+)
learn	acquire knowledge / develop skills
teacher	educator / instructor / mentor
study hard	apply oneself / be academically diligent
good education	well-rounded education / comprehensive curriculum
get a degree	obtain a qualification / graduate with honours

Environment

Basic (Band 5-6)	Precise (Band 7+)
pollution	emissions / contamination / carbon footprint
bad for nature	detrimental to biodiversity / ecologically damaging
save the environment	promote sustainability / conserve natural resources
green energy	renewable energy sources / sustainable alternatives
global warming	climate change / rising global temperatures

Technology

Basic (Band 5-6)	Precise (Band 7+)
use the internet	have access to digital resources
social media	social networking platforms / digital communication
technology is good	technology has facilitated / has enabled
new technology	emerging technology / cutting-edge innovation
people use phones too much	excessive screen time / digital dependency

Work

Basic (Band 5-6)	Precise (Band 7+)
get a job	secure employment / enter the workforce
good salary	competitive remuneration / financial stability
work hard	demonstrate a strong work ethic
boss	employer / line manager / supervisor
lose your job	face redundancy / experience job insecurity

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Strategy 2: Collocations

Collocations — words that naturally go together — are essential for Band 7+. The examiner notices when you use natural word partnerships and when you do not.

Common Academic Collocations

Strong Collocations for IELTS Speaking
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play a significant ROLE        take into CONSIDERATION
have a profound IMPACT on      draw a DISTINCTION between
raise public AWARENESS         reach a CONSENSUS
pose a serious THREAT          meet the DEMANDS of
bridge the GAP between         gain INSIGHT into
hold the VIEW that             fulfil one's POTENTIAL
face a major CHALLENGE         lay the FOUNDATION for
bear RESPONSIBILITY for        shed LIGHT on

Why Collocations Matter

Non-collocating (sounds unnatural):

"Technology has made a big effect on education."

Collocating (sounds natural):

"Technology has had a profound impact on education."

Both convey the same meaning, but the second demonstrates natural vocabulary use.

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Strategy 3: Paraphrasing

Paraphrasing — expressing the same idea in different words — is specifically mentioned in the Band 7 descriptors. You should paraphrase:

• When the examiner uses a word in their question and you want to avoid simply repeating it
• When you have already used a word and need to refer to the same concept again

Paraphrasing Techniques

Synonyms:

"Children" → "young people" → "the younger generation" → "minors"

Changing word form:

"Educate" → "education" → "educational" → "the learning process"

Restructuring:

"Many people use social media" → "Social media is widely used" → "There is widespread use of social media"

Describing the concept:

"Commute" → "the daily journey between home and work"

Example in Context