The best replacement for speech delay is autism.

The best alternatives to speech delay are rated as following:
★★★★★  autism
★★  apraxia
★★  speech disorder
★  late talker
★  language delay
  speech delay
  pdd
  pdd-nos

Your alternative for speech delay is not listed? Suggest!
Speaking about speech delay, one probably shouldn't forget about adhd.

Other search terms related to speech delay and their ratings are:
★★★★★ adhd
★★★★ autism
★★★ sensory processing disorder
★ spd
★ ear tubes
You have in mind a companion for speech delay and it is not yet here? Propose!



Google Trends

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speech delay
autism
apraxia