rule = regulation
X-ray
hoax
Authority can be used as another word for expert and starts with an "A". Example: An authority on the subject of crime, notes that...
One such is "epiglottis."
ATOM
Headache starts and ends with the letters he. Another word is heartache.
A word that starts with AN and ends with OR: ancestor.
donk
alter
Tremble
Idle
A word that starts with A and ends with U: apercu.
A word that starts with E and ends with A: extravaganza.
minimum
segments
"TOURIST"
Team