ChaptersSpell, Mystery, Say It

Spell · Mystery · Say It

Three word games: spell the word you hear, find the hidden word, listen and repeat.

Verified for version 1.5.0 · Updated October 15, 2026

Spell

SpellSynth says a word — you spell it on the keypad. Three mistakes and it reveals the answer, then moves to a new word. ▶ REPEAT says the word again, ? HINT fills in the next letter, and NEW picks another word.

SpellSynth in Spell mode: the display shows the letters spelled so far, above the keypad, the REPEAT bar and the HINT and NEW keys.
Spell: listen, then type the letters.

Mystery Word

The classic hidden-word game. Pick letters until the word reveals itself; six wrong guesses ends the round. The display shows the word's category, and SpellSynth says it out loud as a clue. ? HINT reveals one hidden letter; NEW starts another word.

SpellSynth in Mystery mode: the display shows the hidden word with two letters found, above the keypad with a guessed letter dimmed, the SAY bar and the HINT and NEW keys.
Mystery Word: guess a letter.

Say It

Listen-and-repeat practice. Hear the word spelled letter by letter, then say it aloud. Great for pronunciation. ▶ REPEAT plays it again; NEXT moves on.

SpellSynth in Say It mode: the display shows the word SON, with the REPEAT and NEXT keys and the mascot saying Listen and repeat.
Say It: listen and repeat.

Where the words come from

Spell, Mystery and Say It draw from the built-in word list. You can see every word in the word library. With the voice language set to French, the same three games read ÉPELLE, MYSTÈRE and DIS-LE and use the French list; see voice language.

Still stuck? Write to zhi@nonoaudio.com. Support page