rhotic ar

Core Rule

The ar sound is an r-controlled vowel. When a is followed by r, the vowel is no longer /æ/ or /ɑː/ alone. Instead, it blends with /r/ to form a unified /ɑr/ sound, where the r controls both vowel quality and length.

Articulation Guide

Curl the tongue tip slightly upward without touching the palate. Raise the mid-back of the tongue, keep lips relaxed and slightly open. Airflow is continuous and central, with no stop or explosion.

Word Analysis

In armchair, ar forms a steady /ɑr/ before the nasal. Artist highlights a stressed ar with a clear r-coloring. In charm, ar smoothly links into the final /m/ without overlengthening.

Pitfalls

Do not separate the sounds into “ah + r.” Avoid confusing ar with or or er, and always maintain r-coloring in both British and American accents.