interlocking vs interlacing

interlocking is a noun but interlacing is not a noun.

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

As adjectives, interlocking and interlacing are synonyms defined as:

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

Other synonyms of interlocking include interlinking, interwoven.

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

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