IELTS Speaking · Vocabulary
biodiversity
noun/ˌbaɪəʊdaɪˈvɜːsəti/Band 8
Last updated 21 July 2026
In short
“biodiversity” is a Band 8 noun that means the variety of plant and animal life in a particular habitat or on Earth. Below you'll find its pronunciation, natural example sentences, synonyms and antonyms, and the collocations that help you use it accurately in the IELTS Speaking test.
Meaning
The variety of plant and animal life in a particular habitat or on Earth.
Example sentences
Natural, spoken examples at the level an examiner rewards.
- “Rainforests are rich in biodiversity.”
- “Habitat loss is driving a decline in biodiversity.”
Synonyms & antonyms
Synonyms
biological diversityvariety of life
Antonyms
monoculture
Collocations & common phrases
Word partners that make your usage sound natural — the difference between knowing a word and using it well.
Collocations
protect biodiversityloss of biodiversityrich biodiversity
Common phrases
biodiversity loss
Related words
Explore more vocabulary
Frequently asked questions
What does “biodiversity” mean?
The variety of plant and animal life in a particular habitat or on Earth.
How do you use “biodiversity” in a sentence?
For example: “Rainforests are rich in biodiversity.”
What are some synonyms for “biodiversity”?
Synonyms include biological diversity, variety of life.
Is “biodiversity” good vocabulary for IELTS Speaking?
Yes. It is Band 8 vocabulary, and collocations such as protect biodiversity, loss of biodiversity, rich biodiversity help you use it naturally. Reaching for precise, less common words like this is exactly what lifts your Lexical Resource score.
Next step
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