UK `emphasis` is listed as being `emphasiz` in US english

[mybearworld]

Not a native speaker, but that doesn't seem right to me.

english-words/uk-us-dict.txt

Line 90 in 20f5cc9

emphasis emphasiz

[ItsHarper]

As a native speaker (US), "emphasiz" is definitely not a word, but "emphasize" is. "Emphasis" is a noun, and "Emphasize" is a verb, so they're not interchangable. I doubt UK English is any different in this regard, but I certainly could be wrong.