Hi Simon!
I am so sorry to take so long to reply to this! We don't currently have this API method. At one point we had a 'canonical form' parameter that would try to return 'cat' for words like 'ccat', but we haven't yet been able to reinstate it. It's on the road map!
I'll look into what it would take to make that data a standalone API, it's a good idea!
Thanks!
Erin
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Erin McKean
Wordnik
@emckean/@wordnik/@wordnikapi
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