Billow out
Bag and billow out are semantically related. In some cases you can use "Bag" instead a verb "Billow out".
Bag
Bag verb - To extend outward beyond a usual point.
Cite this Source
Bag and Billow out. (2017). Retrieved 2026, July 31, from https://thesaurus.plus/related/billow_out/bag
Billow out & Bag. N.p., 2017. Web. 31 Jul. 2026. <https://thesaurus.plus/related/billow_out/bag>.
Bag or Billow out. 2017. Accessed July 31, 2026. https://thesaurus.plus/related/billow_out/bag.
Google Ngram Viewer shows how "billow out" and "bag" have occurred on timeline