Vocabulary Family Tree

Vocabulary Family Tree

Explore word formation, meaning, grammar and pronunciation through an interactive 3D learning experience.

Every English word belongs to a family. Create grows into creation, creative, creatively and creativity; each branch carries a new part of speech and a new job in a sentence. Choose a headword, turn the tree in three dimensions, and open any form to see how it is built, used and pronounced in British English.

Open the tree laboratory Take the 50-question quiz
An illustrated specimen card showing the word STRUCTURE with branches to structural, structurally, restructure, structured and unstructured structural structurally restructure structured unstructured structure/ˈstrʌktʃə/ Specimen: the structure family6 of its 11 forms shown
Each colour stripe marks a part of speech: green verb, purple adjective, amber adverb, blue noun.

Word family explorer

Search any headword or related form. Typing analysis, organisation or even the American analyze takes you to the family it belongs to.

Part of speech
A dot marks families you have already opened.

    3D tree laboratory

    Drag the canopy to turn it, or use the arrow keys when the stage is focused. Select any form to open its details; select a branch again to show or hide its inflections and spelling variants.

    Noun Verb Adjective Adverb

    Drag to rotate. Select a word to read about it.

    Text outline of this family (keyboard and screen-reader view)

    Vocabulary statistics

    Every figure below is calculated live from the source list (Headword.docx) as it is loaded, not typed in by hand.

    Lexical forms by part of speech

    Counts distinct dictionary words (inflections and spelling variants excluded). A word used as more than one part of speech, such as research (noun and verb), is counted under each.

    Headword families by estimated level

    Dataset ledger

    Vocabulary quiz lab

    Fifty questions, one at a time, rising from Elementary to Advanced. Every item uses words from this dataset. Check each answer as you go, and you will get a milestone message after every five questions. When you are ready, choose Final assessment to generate your achievement certificate.

    Question 1 of 50
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    Families explored

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    Quiz history

      Original source list

      The 503 rows of Headword.docx are preserved exactly as supplied. Open the list to browse them from A to Z, then select any row to jump straight to its tree.