Q: How many words should my 2-year-old be able to say?
A: Around their second birthday, many children begin to acquire words at breakneck speed, a phenomenon experts call the naming explosion. Most 2-year-olds can say about 100 words. By the time your toddler is 2 1/2, she'll probably know close to 300. But not all children follow this pattern, so don't panic if your child isn't talking nonstop by 2 1/2. However, if by the time your toddler is almost 3, she says fewer than 25 words and can't combine them in a simple two-word phrase, talk to your pediatrician. -- Natalie Walker Whitlock
Copyright 2004. Reprinted with permission from the June 2000 issue of Parents magazine. Updated 2009