The correct spelling for the phrase "ones says" is actually "one says." The word "one" in this phrase is singular, meaning it refers to only one person. This is evident in the use of the verb "says" which agrees with "one" in terms of number. The IPA phonetic transcription for "one" is /wʌn/, while "says" is transcribed as /sɛz/. Therefore, the correct pronunciation of "one says" is /wʌn sɛz/.