coat vs. coats, bee vs. bees, oranges vs. oranges, etc.) thereby facilitating accurate word understanding and production. Irregular forms (e.g. person vs. people, tooth vs. teeth, mouse vs. mice, etc.) are also included. The app consists of 90 pairs which can be selected by phonological group or individually for a customized learning experience. Plural groups include: final /s/, final /z/, final /ɘz/ final /vz/ and irrregular forms.