Operate
Spend
Spend verb - To hand over or use up in payment.
Both words in one sentence
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They had to spend some time learning how to operate it before they could use it against the Chigs, though.
Source: Series / Space: Above and Beyond - The earlier story "The Keys of Marinus" features a similar scenario: The Doctor and company spend five episodes searching for the titular Keys, then get back to find Big Bad Yartek has taken over the machine they operate and is waiting for them.
Source: MacGuffin Delivery Service - On top of this, they also spend most of Ao no Kiseki empowered by Azure Demiourgos which allows them to operate at peak efficiency even in prolonged combat against opponents capable of employing distinctly unconventional means.
Source: Video Game / Kiseki Series
Cite this Source
Spend and Operate. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/operate/spend
Operate & Spend. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/operate/spend>.
Spend or Operate. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/operate/spend.
Google Ngram Viewer shows how "operate" and "spend" have occurred on timeline