Devices
Devices noun - An inclination or desire; used in the plural in the phrase `left to your own devices'.
Theories
Both words in one sentence
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Jason Anderson is said to be an uber genius who comes up with many great theories and devices when he works with groups.
Source: Series / Eureka - Fan theories have it that the scouters used by most of the alien species in Frieza's employ also double as translator devices.
Source: Aliens Speaking English -
Designs and theories have appeared in the West as well as one of the world's first computing devices, a 19th century wooden calculating machine, but no ternary computers have been actually built outside of the Soviet Union due to general lack of interest and the ubiquity of binary hardware.
Source: Soviet Superscience
Cite this Source
Theories and Devices. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/devices/theories
Devices & Theories. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/devices/theories>.
Theories or Devices. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/devices/theories.
Google Ngram Viewer shows how "devices" and "theories" have occurred on timeline