<unk>  (also known as dysnomia, nominal aphasia, and amnesic aphasia) is a mild, fluent type of aphasia where individuals have word retrieval failures and cannot express the words they want to say (particularly nouns and verbs).<unk>  is a deficit of expressive language.<unk>  is a symptom of all forms of aphasia, but patients whose primary deficit is word retrieval are diagnosed with<unk> . Some level of<unk>  is seen in all of the aphasias. Individuals with aphasia who display<unk>  can often describe an object in detail and maybe even use hand gestures to demonstrate how the object is used, but cannot find the appropriate word to name the object. Patients with<unk>  have relatively preserved speech fluency, repetition, comprehension, and grammatical speech.
Anomic aphasia
Global aphasia
Receptive aphasia
Expressive aphasia
Jargon aphasia
Visuospatial dysgnosia
Integrative agnosia
Progressive nonfluent aphasia