 In case (i), error may result from the association of multiple meanings with an expression either in its core form (ğawhar) or in a derivative form (hayʾa). The first case is proper equivocation (ištirāk al-ism) (even though Avicenna uses the term also to refer generically to other types of language-dependent fallacies) and is in fact divided into a number of different sub-types (lafẓ muštarak, mušakkak, mutašābih, lafẓ manqūl, mustaʿār, mağāz). The second case is where Avicenna puts the counterpart of the fallacies of accent and form of expression (or inflection).