What constitutes a language development delay in a child?

Source: Speech
Therapist, Mok Yee Tuen

 Typically, babies start making sounds as soon as they are born, such as different crying sounds to express their demands. From 4 to 8 months, they start babbling, which is part of the language preparation period. Children actually go through a ladder of language development, starting with just learning single words and ending with being able to tell stories with their words.

Babies from 9 months to 1 year generally start producing their first meaningful word, such as “ba,”  “ma,” or “ball ball.” From 1 to 2 years old, their understanding and vocabulary expression increase greatly, with the accumulation of single words forming two-word phrases, such as “mommy drink” and “eat bun bun.”

From 2 to 3 years old, children generally speak in longer sentences and can express different needs. For example, they like to add a word to the two-word phrases, forming three-word combinations, such as “Daddy eat bun” and “I want grandma.” Some children start using adjectives, such as “sister eats a big apple.”