Cudgel one's brains
Rack one's brains and cudgel one's brains are semantically related In some cases you can use "Rack one's brains" instead a verb phrase "Cudgel one's brains".
Rack one's brains
Cudgel one's brains and rack one's brains are semantically related in think hard topic. You can use "Cudgel one's brains" instead a verb phrase "Rack one's brains".
Mutual synonyms
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Rack one's brains and Cudgel one's brains. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/cudgel_one_s_brains/rack_one_s_brains
Cudgel one's brains & Rack one's brains. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/cudgel_one_s_brains/rack_one_s_brains>.
Rack one's brains or Cudgel one's brains. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/cudgel_one_s_brains/rack_one_s_brains.