Boom
Happy day
Boom and happy day are semantically related in favorable outcome topic. You can use "Boom" instead a noun phrase "Happy day".
Cite this Source
Happy day and Boom. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/boom/happy_day
Boom & Happy day. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/boom/happy_day>.
Happy day or Boom. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/boom/happy_day.
Google Ngram Viewer shows how "boom" and "happy day" have occurred on timeline