sh=/ʃ/

Rule Core

sh = /ʃ/ represents a voiceless postalveolar fricative. Two letters encode one sound, common across positions.

Articulation Guide

Tongue raised toward the front palate, lips slightly rounded, steady airflow, no voicing.

Word Analysis

In spaceship, sh keeps /ʃ/, contrasting with the /s/ in space.

Pitfalls

Do not confuse /ʃ/ with /s/ or /tʃ/; note spelling variants.