The architectue of grammar and the division of labor in exponence -- Haplological dissimilation at distinct stages of exponence -- Morphophonological polarity -- Polarity and constraints on paradigmatic distinctness -- Contextual allomorphy -- Sycretism -- Templatic and subtractive truncation -- Ø-exponence -- Reduplication -- Iconicity -- Non-concatenative porphology as epiphenomenon.