Keen
Keen adjective - Able to sense slight impressions or differences.
On the case and keen are semantically related In some cases you can use "On the case" instead an adjective "Keen".
On the case
Keen and on the case are semantically related in concerned topic. You can use "Keen" instead an adjective phrase "On the case".
Mutual synonyms
Cite this Source
On the case and Keen. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/keen/on_the_case
Keen & On the case. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/keen/on_the_case>.
On the case or Keen. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/keen/on_the_case.
