Vocabulary sources

The expanded vocabulary collection includes definitions, word relationships and available usage examples adapted from WordNet 3.0. British spelling adjustments and selection were made for ElevenSprint. Original entries and their progress identifiers are retained.

Princeton University. WordNet 3.0, copyright 2006. All rights reserved. George A. Miller (1995), “WordNet: A Lexical Database for English”, Communications of the ACM 38(11), 39–41.

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Not every word has a natural antonym or a supplied usage example. Practice uses only the activities supported by that entry. Difficulty levels are provisional learning guides, not validated GL scores.