Question marks
Unknown quantities and question marks are semantically related. In some cases you can use "Unknown quantities" instead a noun phrase "Question marks".
Unknown quantities
Question marks and unknown quantities are semantically related. You can use "Question marks" instead a noun phrase "Unknown quantities".
Mutual synonyms
Cite this Source
Unknown quantities and Question marks. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/question_marks/unknown_quantities
Question marks & Unknown quantities. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/question_marks/unknown_quantities>.
Unknown quantities or Question marks. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/question_marks/unknown_quantities.
Google Ngram Viewer shows how "question marks" and "unknown quantities" have occurred on timeline