extensive, akin, curious, agile, explosive: meanings and examples

Learn these 5 words from SAT Vocabulary Level 1 set 139. Each entry includes a definition, example sentence, pronunciation, and synonyms. Use the interactive cards above to practice them.

1. extensive · adjective/ɪkˈstɛnsɪv/

   covering a large area or having a wide scope

   The university has an extensive library collection that includes rare manuscripts and a wide range of academic journals.

   Synonyms: widespread, vast, comprehensive

   Origin: from Latin 'extensivus', which means 'spacious, extensive', derived from 'extendere' meaning 'to stretch out'

2. akin · adjective/əˈkɪn/

   having similar qualities or characteristics

   Her dedication to the project was akin to that of a devoted artist perfecting their craft.

   Synonyms: similar, comparable, related

   Origin: Middle English, from Old English 'acennian' meaning 'to bring forth, to produce'; related to the word 'kin'.

3. curious · adjective/ˈkjʊr.i.əs/

   eager to know or learn something

   The curious child asked a dozen questions about how the world works.

   Synonyms: inquisitive, eager, interested

   Origin: from Middle French 'curieux', from Latin 'curiosus', meaning 'careful' and 'solicitous'.

4. agile · adjective/ˈædʒ.aɪl/

   able to move quickly and easily

   The agile athlete gracefully navigated the obstacle course, demonstrating remarkable speed and coordination.

   Synonyms: nimble, lively, spry

   Origin: from Latin 'agilis', which is derived from 'agere' meaning 'to do, to act'.

5. explosive · adjective/ɪkˈsploʊsɪv/

   capable of causing an explosion or bursting apart

   The factory had to be evacuated due to a leak in the explosive materials storage area.

   Synonyms: volatile, eruptive, combative

   Origin: From Latin 'explosivus', from 'explodere' meaning 'to drive out or push out'