ambassador vs interpreter

ambassador and interpreter both are nouns.

Word	Noun	Adjective	Verb	Adverb
ambassador	Yes	No	No	No
interpreter	Yes	No	No	No

As nouns, interpreter is a hypernym of ambassador; that is, interpreter is a word with a broader meaning than ambassador:

Other hypernyms of ambassador include representative, spokesperson, voice.

ambassador (noun)	interpreter (noun)
a diplomat of the highest rank; accredited as representative from one country to another	(computer science) a program that translates and executes source language statements one line at a time
an informal representative	an advocate who represents someone else's policy or purpose
	someone who mediates between speakers of different languages
	someone who uses art to represent something