Jeddah vs Jed'dah

Jeddah and Jed'dah both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jeddah	Yes	No	No	No
Jed'dah	Yes	No	No	No

As nouns, Jeddah and Jed'dah are synonyms defined as:

Jeddah and Jed'dah: port city in western Saudi Arabia on the Red Sea; near Mecca

Other synonyms of Jeddah include Jidda, Jiddah.

Jeddah (noun)	Jed'dah (noun)
port city in western Saudi Arabia on the Red Sea; near Mecca	port city in western Saudi Arabia on the Red Sea; near Mecca