Dig down
Retrieve and dig down are semantically related. in investigate topic. In some cases you can use "Retrieve" instead a verb "Dig down".
Retrieve
Retrieve verb - To get again in one's possession.
Cite this Source
Retrieve and Dig down. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/dig_down/retrieve
Dig down & Retrieve. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/dig_down/retrieve>.
Retrieve or Dig down. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/dig_down/retrieve.
Google Ngram Viewer shows how "dig down" and "retrieve" have occurred on timeline