Lexical resource

July 5, 2026
Lexical resource refers to the range and accuracy of vocabulary a candidate uses in the IELTS Speaking test, including how well words are chosen and used.
Lexical resource
IELTS Speaking

Lexical resource is one of the four key criteria used to assess a candidate’s performance in the IELTS Speaking test. It measures the variety, appropriateness, and precision of vocabulary that a candidate uses to express ideas clearly and effectively. This includes the ability to use less common and topic-specific words, as well as the correct use of collocations, idiomatic language, and paraphrasing.

Importance in IELTS Speaking

  • Band Descriptors: The IELTS Speaking band descriptors highlight lexical resource as a crucial factor. Candidates are expected to demonstrate flexibility in using vocabulary and to avoid frequent repetition of basic words.
  • Communicative Effectiveness: A strong lexical resource allows candidates to explain ideas more precisely, clarify meaning, and handle unfamiliar topics with greater ease.
  • Error Impact: Occasional errors in word choice are acceptable, but frequent mistakes or limited vocabulary can restrict communication and lower the band score.

Example

  • If a candidate is asked about their favorite season and says, “I like summer because it is hot,” this shows basic vocabulary. Using a wider range, such as “I enjoy summer due to the long, sunny days and the vibrant atmosphere,” demonstrates stronger lexical resource by including less common words and descriptive language.

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