Vav is the shortest section
8 columns in BDB
7 taken up with itself.
Of the other 10 words,
all are proper names or
unique textual misfits
except וָו the hook.
Clearly this letter names itself and itself only. In my Hebrew Latin concordance, listing every textual meme in TNK, Vav occupies 1/2 of a column in 6000 columns - that's about 0.000001 %. It lists 3 words, vav, vzr (?) Proverbs 21:8 and vlk - without definition, thought to be a misprint for ylk, whom we have met already. How errant that word is! (Joke). And vav itself is used only in Exodus for the building of the tabernacle.
Was vav the easiest letter to engrave and so a divider that became a hook? For all its rarity in the beginning of roots, I bet that vav begins more 'words' in Scripture than any other letter! It is everywhere as connector. And it is everywhere in differing roles.
It was tricky to find an occurrence of 'I will say' that is not preterite in an English Bible. It occurs in direct speech. (This verse should have been more fully dealt with under aleph). And note that the text has the male form of lad נַּעֲרָ instead of the female form, lass נַעֲרָה - that we have seen so clearly in Ruth. (where is the 'he'?) It is read as lass though writ as lad. And what about those hooks? - One joins the text to the surrounding narrative and the other acts as a relative pronoun!
BDB lists several meanings for vav - and, or, but, and many more. But vav is not limited to connecting phrases with each other, it also plays significant grammatical roles as suffix - third person singular possessive for instance. So in Ruth we have already seen
Besides the third person plural suffix of verbs, it also is in the second person masculine plural suffix of verbs in the imperfect. (I didn't find an example in Ruth - so none given for this exercise.) And with nun (always nu) it is in the first person plural perfect. This form does not occur in Ruth but the pronoun 'our' - with the same form nu occurs in Ruth 2:20