spic-and-span vs spick-and-span

spic-and-span and spick-and-span both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spic-and-span	No	Yes	No	No
spick-and-span	No	Yes	No	No

As adjectives, spic-and-span and spick-and-span are synonyms defined as:

Other synonyms of spic-and-span include immaculate, speckless, spic, spick, spotless.

As adjectives, spic-and-span and spick-and-span are synonyms defined as:

Other synonyms of spic-and-span include bran-new, brand-new.

spic-and-span (adjective)	spick-and-span (adjective)
completely neat and clean	completely neat and clean
conspicuously new	conspicuously new