Expensive
Mutual synonyms
Both words in one sentence
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It would have been the second shuttle to fly, but design changes made the refit prohibitively expensive.
Source: Legacy Character -
Then you fly back to your home starbase and sell all your fuel for a CRAPTON of cash to buy all the ships and expensive upgrades you'll ever need.
Source: Adam Smith Hates Your Guts -
On the up side they require extremely high level technology and are expensive to make, on the down side some versions might be able to fly or travel through space.
Source: Grey Goo
Cite this Source
Fly and Expensive. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/expensive/fly
Expensive & Fly. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/expensive/fly>.
Fly or Expensive. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/expensive/fly.
Google Ngram Viewer shows how "expensive" and "fly" have occurred on timeline