Common mistakes by native language
Japanese speakers
Mistake: Pronouncing "or" with a full, separately stressed vowel, like "moa oa resu", giving all three words equal weight and clarity.
Why: Katakana loanword pronunciation attaches a clear vowel to every syllable, but "or" is a short function word that reduces heavily and links tightly with the surrounding r-colored vowels in fluent English.
Fix: Let "more" and "or" blend together through the shared r-coloring: [ˈmɑrɝˈlɛs] in General American. The whole phrase should feel like two beats, not three separate words.
Korean speakers
Mistake: Substituting a Korean-style tapped r for the English r-colored vowel in both "more" and "or", producing a shorter, more consonant-like sound.
Why: Korean r is typically a light alveolar tap or lateral, quite different from the American bunched-tongue r-colored vowel [ɝ] or [ɔr], which requires holding the tongue in a specific retroflexed or bunched position.
Fix: Practice holding the r-colored vowel steady without a tap: [mɔr]. Try prolonging the r sound briefly to feel the continuous vowel quality rather than a quick consonant flick.
Spanish speakers
Mistake: Rolling or tapping the r in "more" and "or" the way Spanish does, and pronouncing the vowel as a pure, short [o] rather than the diphthongized or r-colored English vowel.
Why: Spanish r is a tapped or trilled consonant with clearly separate vowel and consonant components, which conflicts with the English r-colored vowel where the vowel and r-quality merge into one continuous sound.
Fix: Practice the r-colored vowel [ɔr]/[ɝ] as a single unit with no tap or trill — let the tongue bunch and stay there through the whole sound: [mɔr], [ɔr], with no separate consonant articulation.
Notes
"More or less" is a common hedging phrase meaning "approximately" or "roughly", used to soften a statement when exact precision isn't necessary or available. The phrase relies heavily on r-colored vowels, a hallmark feature of General American English: both "more" and "or" end in the same r-colored sound, so in fast speech they blend almost seamlessly into one continuous r-quality stretch before dropping into "less" — [ˈmɔrɝˈlɛs] or sometimes even more reduced to something closer to [ˈmɔːrləs]. In Received Pronunciation, by contrast, the non-rhotic nature of the accent means "more" ends in a schwa-like vowel, but because "or" follows and also starts with a vowel-adjacent sound, a linking r reappears to smooth the transition: [ˈmɔːrɔːˈles]. This makes "more or less" a particularly good phrase for comparing how GA and RP handle r sounds differently while producing a similarly smooth, connected result. As a hedging phrase, it's typically said quickly and with relatively low stress overall, since its function is to soften rather than emphasize the statement it modifies.