overtone vs import

overtone and import both are nouns.

Word	Noun	Adjective	Verb	Adverb
overtone	Yes	No	No	No
import	Yes	No	Yes	No

As nouns, import is a hypernym of overtone; that is, import is a word with a broader meaning than overtone:

Other hypernyms of overtone include meaning, significance, signification.

overtone (noun)	import (noun)
a harmonic with a frequency that is a multiple of the fundamental frequency	commodities (goods or services) bought from a foreign country
(usually plural) an ulterior implicit meaning or quality	having important effects or influence
	a meaning that is not expressly stated but can be inferred
	the message that is intended or expressed or signified
	an imported person brought from a foreign country

overtone (verb)	import (verb)
	indicate or signify
	bring in from abroad
	transfer (electronic data) into a database or document