import vs significance

import and significance both are nouns.

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

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

As nouns, import and significance are synonyms defined as:

import and significance: a meaning that is not expressly stated but can be inferred

Other synonyms of import include implication.

As nouns, import and significance are synonyms defined as:

import and significance: the message that is intended or expressed or signified

Other synonyms of import include meaning, signification.

import (noun)	significance (noun)
commodities (goods or services) bought from a foreign country	the quality of being significant
having important effects or influence	a meaning that is not expressly stated but can be inferred
a meaning that is not expressly stated but can be inferred	the message that is intended or expressed or signified
the message that is intended or expressed or signified
an imported person brought from a foreign country

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