ar /ɑr/

Core Rule

ar = /ɑr/ describes a classic r-controlled vowel. The letter pair ar produces a low, open /ɑ/ followed immediately by an r-colored ending, forming one stable sound unit.

Articulation Guide

Drop the tongue low and slightly back. Open the mouth naturally for /ɑ/, keep airflow smooth, then curl the tongue tip slightly toward the alveolar ridge to finish with /r/.

Word Analysis (planetary)

In planetary, ar appears in a stressed syllable and clearly realizes /ɑr/. The vowel stays open and full, with a controlled rhotic ending, not drifting toward /æ/ or /ɔ/.

Pitfalls to Avoid

Do not confuse ar with air or or. Avoid flattening the vowel or deleting the r-coloring.