The diagnosis changes according to the type of defect:
ExampleMain defectReason
الهعخعSound discordHeavy articulation
بوقاتViolation of qiyāsNon-analogical plural
تكأكأObscurityMeaning not readily recognized
A word may have more than one shortcoming, but each diagnosis requires its own evidence. For these examples the relevant teaching aim is to identify the characteristic defect.