Cause
Cause noun - Someone or something responsible for a result.
Power source and cause are semantically related. In some cases you can use "Power source" instead a noun "Cause".
Power source
Cause and power source are semantically related. Sometimes you can use "Cause" instead a noun phrase "Power source".
Both terms in one sentence
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They cause harm to witches and wizards, and they're the primary power source for the ogres.
Source: Manga / Sugar Sugar Rune -
However, irregular electromagnetic waves from The Seed, F.A's power source, will cause the SDF's unmanned fighters to malfunction.
Source: Video Game / Border Down - However, they shifted their cause from eliminating the Worms into catching them and using them as power source.
Cite this Source
Power source and Cause. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/cause/power_source
Cause & Power source. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/cause/power_source>.
Power source or Cause. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/cause/power_source.
Google Ngram Viewer shows how "cause" and "power source" have occurred on timeline