Semiotic theory has often been burdened by terminological inconsistencies and especially by the use of concepts and definitions in idiosyncratic ways. This paper aims to provide a framework for eliminating such inconsistencies and idiosyncracies by putting forward a simple system of terms based on Modeling Systems Theory, as developed by the late Thomas A. Sebeok, that takes into account semiotic behavior across species. The four basic forms proposed here (singularized, composite, cohesive, and connective) are defined, illustrated, and defended as solutions for standardizing semiotic terminology and for bringing general semiotic theory more in line with the biosemiotic movement