A complete, filterable list of 312+ English words ending in -TION — with definitions, word types, and difficulty ratings.
The "-tion" suffix entered English mainly through Latin and French. It signals a noun of action or result: something that was done (creation), is happening (rotation), or came about (solution). Because so much formal and academic writing leans on these nouns, recognising "-tion" words unlocks comprehension across law, medicine, science, and politics.
Part of speech: Overwhelmingly nouns. The "-tion" suffix converts verbs and adjectives into abstract nouns of action, process, or result (act → action, describe → description).
"-TION" words score high in Scrabble because T, I, O, and N are all common tiles. Long "-tion" words (like "station" or "fraction") can land on bonus squares and clear a crowded rack at the same time.
This list includes 312 English words ending in -tion, drawn from a curated dictionary of 10,000+ words spanning everyday vocabulary, academic terms, and word-game forms. The count focuses on base forms; inflected variants (e.g. plurals or conjugations) are counted separately.
Common examples from this list include: Action, Additio. Use the difficulty filter above to browse easy, medium, or hard words separately.
Overwhelmingly nouns. The "-tion" suffix converts verbs and adjectives into abstract nouns of action, process, or result (act → action, describe → description). Use the "Type" filter above to narrow the list to nouns, verbs, adjectives, or adverbs specifically.
Most standard words on this list are accepted in major Scrabble dictionaries (TWL, SOWPODS). Some hard-difficulty words are archaic, borrowed, or dialect forms whose validity can vary between rulesets — always verify against the official word list for your competition or app.