Synonyms for the term "IEE PROC D CONTROL THEORY APPL" can be derived by breaking down the phrase into its individual components. "IEE" refers to the Institution of Electrical Engineers, an esteemed professional organization, "PROC D" denotes the proceedings of a research paper presented at a conference, and "CONTROL THEORY APPL" pertains to the practical application of control theory. Therefore, alternative synonyms for this phrase could include "Institute of Electrical Engineers conference paper on applied control theory", "Proceedings of the IEE on control theory applications", or simply "Applied control theory research paper from the IEE conference". These terms capture the essence of the original phrase and can be used interchangeably to refer to the same subject.