Word Structure
Roots & Stems
Latin & Greek roots — the building blocks inside every word. Learn one root and unlock dozens of words.
204 rootsExplore →
Prefixes
Word beginnings that transform meaning. Master these and decode unfamiliar words instantly.
83 prefixesExplore →
Suffixes
Word endings that reveal part of speech and grammatical role. Spot them and know the word.
50 suffixesExplore →
Vocabulary Lists
Elementary Vocab
Essential words for the SSAT Elementary & ISEE Lower Level. A perfect starting point.
574 wordsExplore →
Middle Vocab
Commonly tested words for the SSAT & ISEE Middle Level. Step up your vocabulary game.
769 wordsExplore →
Upper Vocab
Advanced words for the SSAT & ISEE Upper Level. Master these to ace the hardest questions.
762 wordsExplore →