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Byrugani Classroom · Phonics Series
Tetragraphs for Kids: 1,000+ Practice Words & a Points-Based Tetragraph Builder Game
A tetragraph is four letters that team up to make just one sound — the "tion" in "nation," the "sion" in "vision," the "eigh" in "weigh." It's the same idea as a trigraph (three letters, one sound — see our Trigraphs post), just one letter longer. Below is a complete, teacher-ready tetragraph word bank with tap-to-hear audio on every word, plus the Byrugani Tetragraph Builder — a drag-and-drop game with points, streaks, badges and hints.
Why "-tion" and "-sion" get their own giant word families
Most tetragraphs on this page are word endings rather than beginnings — "-tion" and "-sion" alone cover hundreds of English words, because they're how English turns action words into naming words (educate → education). A few, like "eigh" and "ough," are trickier: the same four letters can sound different from word to word ("through" vs. "though" vs. "cough"), so it helps to say each one slowly and listen closely rather than guess from spelling alone.
Word Explorer — tap any word to hear it read aloud
Pick a tetragraph family below, then narrow to one exact pattern, or search the whole bank.
Play: The Byrugani Tetragraph Builder
Drag four letters from the tray to fill in the missing tetragraph — wherever it sits in the word. Earn points, build a streak, and unlock badges!
Byru is ready when you are! 🚂
Take it offline
Want the full tetragraph list on paper for a classroom wall, a homework folder, or a reading log? Download the complete word bank below — every tetragraph pattern, and every word used on this page.