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RESOURCES
Vocabulary Milestones and Average Ranges
A milestone is what most children (about 9 out of 10) can do by a certain age.
The average range is the “middle ground.” About half of children are at this level, with some below and some above.
Use these as a general reference. Every child develops at their own pace.
12
months
Milestone
1 word
Average
5+ words
18
months
Milestone
10 words
Average
50+ words
24
months
Milestone
50 words, Combining 2 words
Average
300+ words
36
months
Milestone
250 words, Combining 3+ words
Average
1,000+ words
Nicolosi, Harryman, & Kresheck (2006); and Owens (1996)
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