interlinking vs interlocking

interlinking is not a noun while interlocking is a noun.

Word	Noun	Adjective	Verb	Adverb
interlinking	No	Yes	No	No
interlocking	Yes	Yes	No	No

As adjectives, interlinking and interlocking are synonyms defined as:

interlinking and interlocking: linked or locked closely together as by dovetailing

Other synonyms of interlinking include interlacing, interwoven.

interlinking (noun)	interlocking (noun)
	the act of interlocking or meshing
	contact by fitting together

interlinking (adjective)	interlocking (adjective)
linked or locked closely together as by dovetailing	linked or locked closely together as by dovetailing