Calls
Trial balloons and calls are semantically related. In some cases you can use "Trial balloons" instead a noun "Calls".
Trial balloons
Calls and trial balloons are semantically related. Sometimes you can use "Calls" instead a noun phrase "Trial balloons".
Mutual synonyms
Cite this Source
Trial balloons and Calls. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/calls/trial_balloons
Calls & Trial balloons. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/calls/trial_balloons>.
Trial balloons or Calls. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/calls/trial_balloons.
Google Ngram Viewer shows how "calls" and "trial balloons" have occurred on timeline