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Pronunciation varies by accent · noun
(athletics) Someone who participates in ultramarathons..
Use ultramarathoner when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Ultramarathoner means (athletics) Someone who participates in ultramarathons..
Common synonyms include ultrarunner.
The opposite depends on the specific sense.
Use ultramarathoner where its definition matches the intended context.
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