twine vs splice

twine and splice both are nouns.

Word	Noun	Adjective	Verb	Adverb
twine	Yes	No	Yes	No
splice	Yes	No	Yes	No

As verbs, splice is a hyponym of twine; that is, splice is a word with a more specific, narrower meaning than twine:

Other hyponyms of twine include wind, wreathe, wattle, plash, pleach, knot, ravel, tangle.

twine (noun)	splice (noun)
a lightweight cord	joint made by overlapping two ends and joining them together
	a junction where two things (as paper or film or magnetic tape) have been joined together

twine (verb)	splice (verb)
spin, wind, or twist together	join by interweaving strands
make by twisting together or intertwining	join the ends of
arrange or coil around	join together so as to form new genetic combinations
form into a spiral shape	perform a marriage ceremony