/ɚ/

The /ɚ/ is the unstressed r-colored schwa - a relaxed vowel with R-coloring that appears in weak syllables. Think of it as the laid-back sibling of the stressed /ɝ/ (as in "bird").

To produce it, combine a relaxed schwa with the American R: your tongue arches upward toward the back of your hard palate while the sides curl up to touch your upper back teeth. The center stays lower, creating a small bowl shape. Your tongue tip may rise but never touches the roof of your mouth. Keep your jaw mid-open and your lips slightly rounded.

The key difference from stressed /ɝ/: everything is shorter and softer. The vowel quality essentially disappears - you're mostly hearing the R-coloring on a brief, unstressed syllable.

This sound appears in the weak positions of words, spelled with many different vowel combinations before R:

• -er: butter, letter, teacher
• -or: doctor, actor, mirror
• -ar: dollar, collar, sugar
• -ur: sulfur, murmur

Notice that stressed /ɝ/ (in "bird," "nurse," "learn") is longer and more prominent, while /ɚ/ slips by quickly in unstressed syllables.

Practice minimal pairs that contrast stress: compare "record" (noun: REC-/ɚ/d) with "record" (verb: re-CORD). In the noun, the second syllable has the quick, reduced /ɚ/. Tap your finger on the stressed syllable to feel the difference - the /ɚ/ should feel like it's just along for the ride.