Active content such as scripting is probably disabled in your browser.
This is a reasonable security precaution for you or whoever set up your computer to take, but the checker won't work unless they are enabled.
Enable scripting if you can to run the checker interactively.
Type in the singular of your word in the box below, eg. domino.
Press Start and work through the prompts. If a path runs out of options, you will need to back-track.
When you've finished, write the plural word, eg. dominoes.
singular word
plural word
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