rudiments vs basic principle

rudiments and basic principle both are nouns.

Word	Noun	Adjective	Verb	Adverb
rudiments	Yes	No	No	No
basic principle	Yes	No	No	No

As nouns, basic principle is a hypernym of rudiments; that is, basic principle is a word with a broader meaning than rudiments:

Other hypernyms of rudiments include basics, bedrock, fundamental principle, fundamentals.

rudiments (noun)	basic principle (noun)
the elementary stages of any subject (usually plural)	principles from which other truths can be derived
a statement of fundamental facts or principles