linguistic string vs word string

linguistic string and word string both are nouns.

Word	Noun	Adjective	Verb	Adverb
linguistic string	Yes	No	No	No
word string	Yes	No	No	No

As nouns, linguistic string and word string are synonyms defined as:

linguistic string and word string: a linear sequence of words as spoken or written

Other synonyms of linguistic string include string of words.

linguistic string (noun)	word string (noun)
a linear sequence of words as spoken or written	a linear sequence of words as spoken or written