Most of the words come from a vocabulary list that gets updated about every ten years.

VOA: special.2009.04.06

This new method of broadcasting used a limited vocabulary.

VOA: special.2009.10.16

Johnson says that her students, over the past several years, have increasingly used a more informal English vocabulary in formal assignments.

VOA: standard.2010.01.16

Change in rhetoric alone is not enough,he says and even then we haven't seen much change in vocabulary.

VOA: standard.2009.03.21

"Parents and caregivers; the family members are the first ones who introduce vocabulary.

VOA: standard.2010.05.05

And the more words the children hear, the greater their vocabulary."

VOA: standard.2010.05.05

Erin Jansen,founder of Netlingo, an online dictionary of Internet and text messaging terms, also says the new technology has not fundamentally changed existing language but added immensely to the vocabulary.

VOA: standard.2010.01.16