He heard her shallow breathing, heard her jaw creak.

A sudden yawn made her jaws creak like rusty oarlocks.

Talking is an effort; his jaws creak at their hinges.

He clenched his teeth until his jaws creaked and a thin trickle of blood ran from his gums.

His jaw creaked.

I heard his jaw creak as he yawned again.

He yawned and his jaw creaked, echoing inside his head.

Elayne tried not to look at Nynaeve; even the sound of a yawn made her jaws creak.

Bill hauled on one side and Meta on the other and, after great effort, the jaw creaked open.

Open it so wide your jaws creak.