adjective
extensive
ik-STEN-siv/ɪkˈstensɪv/
Large in amount, area, or scope.
The extensive forest stretches across the hills to the distant horizon.

Etymology
“Stretching out” supplies the image of something far-reaching. Extensive applies that image both to physical area and to an immaterial range or amount.
In context
Researchers have documented extensive gully development in different parts of the town, including areas around Igbe Road, Jattu Road, Warake, Iyehi, and Oshobugie.
More examples
- She has extensive experience teaching adults.
- The museum holds an extensive collection of maps.
- The house needed extensive repairs.
Forms
extensive
extensively adverb — over a wide area or in great amount
Similar words
- widespread
- Emphasizes distribution across an area or population.
- comprehensive
- Emphasizes complete coverage rather than size alone.