word string vs linguistic string

word string and linguistic string both are nouns.

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

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

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

Other synonyms of word string include string of words.

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