IELTS Vocabulary — Set 69

Set 69 of IELTS Vocabulary covers 5 words: ambiguous, knowledgeable, energetic, marketable, equivalent. Each entry below includes its definition, an example sentence, and synonyms — practice them with the interactive cards above.

1. ambiguous · adjective/æmˈbɪɡ.ju.əs/

   having more than one meaning or interpretation

   The instructions were ambiguous, leaving many employees confused about how to proceed.

   Synonyms: unclear, vague, equivocal

   Origin: from Latin 'ambiguus', meaning 'doubtful, undecided', from 'amb-' (both ways) + 'agere' (to drive, to act)

2. knowledgeable · adjective/ˈnɑlɪdʒəbl/

   possessing or exhibiting knowledge or understanding

   The professor was very knowledgeable about ancient history, making his lectures incredibly engaging.

   Synonyms: informed, educated, wise

   Origin: The word 'knowledgeable' is derived from the noun 'knowledge', which comes from the Old English 'cnāwleċe', meaning 'the fact or condition of knowing something'. The suffix '-able' is used to form adjectives indicating capability.

3. energetic · adjective/ˌɛnərˈdʒɛtɪk/

   having or showing a lot of energy or enthusiasm

   The children were incredibly energetic during the playground activities, running and laughing without a care in the world.

   Synonyms: vigorous, dynamic, lively

   Origin: from Greek 'energetikos', meaning 'active or working', from 'energeia', meaning 'activity, operation'

4. marketable · adjective/ˈmɑr.kɪ.tə.bəl/

   capable of being sold or marketed

   The new smartphone features are highly marketable, making it a top choice for consumers this holiday season.

   Synonyms: saleable, sellable, commercial

   Origin: from the word 'market' + the suffix '-able', indicating capability

5. equivalent · adjective/ɪˈkwɪvələnt/

   equal in value, function, or meaning

   The diploma she received is equivalent to a high school degree in terms of educational value.

   Synonyms: identical, comparable, tantamount

   Origin: from Latin 'aequivalens', from 'aequus' meaning 'equal' and 'valens' meaning 'worth' or 'strong'