High Frequency Words (HFW)

High Frequency Words (HFW) - the most common words in running text that, when read instantly, assist with fluent reading (for example, a, the, of). There are two types of high frequency words: "flash words," which are decodable, and "heart words," which are partly or not at all decodable.

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Reading Universe is made possible by generous support from Jim & Donna Barksdale; the Hastings/Quillin Fund, an advised fund of the Silicon Valley Community Foundation; the AFT; the Emily Hall Tremaine Foundation; and three anonymous donors.

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