This chart demonstrates the average ages of customary consonant articulation acquisition

• 18-36 months
  Rapid Speech Development

Between 18 - 36 months children develop speech rapidly. They use a greater variety of sounds and sound combinations. When they encounter a word that is difficult to pronounce they usually simplify the pronunciation. A child might:

• Leave off the final consonant of a word. “Dog” would be pronounced “da.”

• Simplify the production of a consonant blend (two or more consonants in a sequence), so that “plane” would become “pane.”

• Substitute one sound that is easier to make than another which is more difficult to make. For example, “ring” becomes “wing.”

• Repeat one of the syllables in a word. For example “water” might become “wa-wa."
  

• Drop one of the syllables in a word so that “telephone” becomes “tephone.”
  
  

Read more about Milestones of Language Development on page three

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Signs & Symptoms
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Milestones of Speech Development

• 12-18 months
  First Words

Between 12-18 months, babies begin to produce strings of sounds made up of different syllable combinations such as “ba-da-na.” These sequences are produced with adult-like speech patterns. Your baby seems to be really talking, asking questions, making statements or demanding action. However, when you listen closely to these combinations, you will find they are mostly jargon. Sometime around the baby's first birthday, the child begins to produce some true words. However, babies are very limited in the consonants and vowels they use in these first words.