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WordBank
Discover words across grade levels and subject areas that students will encounter in classroom reading.
About Lexile WordBank
Repeated encounters with words in meaningful contexts provide the best opportunity for successful vocabulary development. As a result, curriculum and assessment developers need up-to-date information about the words students are likely to encounter in their school reading to focus attention on the words students will actually encounter.
WordBank Column Descriptions
Lexile WordBank can be sorted and filtered for customization of the words based on need.

Products, Tools, and Services
- Score Interpreter
  Retrieve student Lexile and Quantile measures and forecast performance on an upcoming assessment.
- Get Measurements
  Use our products, tools, services and APIs to get the measurements you need.
- WordBank
  Discover words across grade levels and subject areas that students will encounter in classroom reading.
  - About Lexile WordBank
    Repeated encounters with words in meaningful contexts provide the best opportunity for successful vocabulary development. As a result, curriculum and assessment developers need up-to-date information about the words students are likely to encounter in their school reading to focus attention on the words students will actually encounter.
    - WordBank Development Background
      Using data from the Education Market Research report along with the top four best-selling textbook programs in the areas of science, math, social studies, and reading/ELA, the MetaMetrics’ Landscape of American Schools English Corpus was created.
    - WordBank Column Descriptions
      Lexile WordBank can be sorted and filtered for customization of the words based on need.
    - Ways to Use WordBank
      The Lexile WordBank can be used in various ways in curriculum, assessment, and instructional applications.
    - Getting More Academic and Grade-Assigned Words from the Lexile WordBank
      This topic explains how we developed WordBank and why relatively few words have domain and grade assignments and suggests some ways you can use WordBank to meet your needs for larger numbers of academic words or more words with grade assignments.
  - WordBank FAQ
    The Lexile® WordBank is a vocabulary resource containing unique words, proper nouns, and terms and phrases from the current top four best-selling textbook programs in science, math, social studies, and reading/English language arts (ELA). It provides curriculum and assessment developers with rich information about the words students will likely encounter in their school reading.
  - WordBank Glossary
    This table contains an alphabetical list of phrases found in or relating to WordBank.
- The Hub
  An online platform that provides easy access to more than a dozen reading and math tools.
- Quantile Sequencing Service
  Get research-driven information to direct users to appropriate resources for learning a skill or concept.

WordBank Column Descriptions

Lexile WordBank can be sorted and filtered for customization of the words based on need.

The available columns, headers, and data descriptions are listed below.


Column	Header	Description
A	Word	A word from the Corpus
B	Word Measure	An estimate of the challenge a particular word will present, on average, to a particular reader during independent reading.
C, D, E, F, G, H	Grade Frequency	The total number of occurrences of the word in texts for each grade or grade range: 1, 2, 3, 4, 5, 6-8, 9-12
I, J, K, L	Grade 1-12 Frequency	The total number of occurrences of the word in a domain (science, math, social studies, and reading/ELA) specific texts for all grades, 1-12.
M	Grade 1-12 Overall Frequency	The total number of occurrences of the word in all domains’ texts across grades 1-12.
N, O, P, Q	Domain Bias	Measure from -1 to 1, indicating whether the word appears relatively more or less in each domain (science, math, social studies, and reading/ELA) in the Corpus. A positive value indicates that the word appears more in a specific domain, whereas a negative value indicates the word appears more in a different domain.
R	Dispersion Across Textbooks	The extent to which the word is spread across the textbooks. The measure is from 0 to 1. A value near 0 indicates the word occurs mostly in one textbook. A value near 1 indicates that the word is used across many textbooks within and across domains.
S	Dispersion Across Domains	The extent to which the word is spread across the domains of math, reading/ELA, science, and social studies. The measure is from 0 to 1. A value near 0 indicates the word occurs mainly in one domain. A value near 1 indicates that the word is used relatively evenly across all domains.
T, U, V, W	Academic Words	Whether or not the word is an academic word. The options are Yes and No. Yes indicates the word is an academic word. No indicates the word is not an academic word. Domains include: science, math, social studies, and general academic.
X	Grade Assignment	The grade in which the word appeared at the highest frequency.
Y, Z, AA, AB	Likelihood of Being a Domain Specific Word	The likelihood of being a domain-specific word based on statistics and expert judgment. (1= High Likelihood; 0= Low Likelihood) Domains include: science, math, social studies, and general academic.