Common words:
* Believe
* Chief
* Field
* Friend
* Grief
* Piece
* Shield
* Thief
* Brief
* Sieve
* Lie
* Tie
* Die
Less common words:
* Grievous
* Lien
* Pier
* Relieve
* Vielle (an old string instrument)
Note: The spelling "ie" is not the only way to represent the long e sound. Other common spellings include "ee," "ea," "ey," and "y."