An articulation disorder is a speech sound disorder in which a child has difficulty making certain sounds correctly. Sounds may be omitted or improperly altered during the course of speech. A child may substitute sounds (“wabbit” instead of “rabbit”) or add sounds improperly to words. Young children will typically display articulation issues as they learn to speak, but they are expected to “grow out of it” by a certain age. If the errors persist past a standard developmental age, which varies based on the sound, then that child has an articulation disorder.