Boom
Boom verb - To become greater in size, extent, volume, amount, or number.
Usage example: requests for hybrid cars are booming
Contract
Contract verb - To become affected with (a disease or disorder).
How words are described
Cite this Source
Contract and Boom. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/boom/contract
Boom & Contract. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/boom/contract>.
Contract or Boom. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/boom/contract.
Google Ngram Viewer shows how "boom" and "contract" have occurred on timeline