Complex
Complex noun - A structure that is designed and built for a particular purpose.
Concrete idea and complex are semantically related In some cases you can use "Concrete idea" instead a noun "Complex".
Concrete idea
Complex and concrete idea are semantically related in fixation topic. Sometimes you can use "Complex" instead a noun phrase "Concrete idea".
Cite this Source
Concrete idea and Complex. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/complex/concrete_idea
Complex & Concrete idea. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/complex/concrete_idea>.
Concrete idea or Complex. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/complex/concrete_idea.
Google Ngram Viewer shows how "complex" and "concrete idea" have occurred on timeline