AbelianGrape
What does any of this have to do with LLMs?
I mean I agree with the conclusion but the confused people here are.... people. I think if you ask an LLM about the "common name Rach," it'll also tell you that you probably mean Rachel.
I believe you didn't intend to, but you did claim it, twice. Hence why the commenter I initially replied to (in which I guessed you meant the common _nick_name) was confused.
Then you replied to me saying "it's literally from the bible [so it's a common name]" implying that you disagreed with me about it being a nickname and you did really mean it as a given name.
Hopefully that explains the confusion.
Rachel is a very common given name. "Rach" is a fairly common nickname for it. "Rach" is not a common given name. (This matches what I said above.)
I just took a look at some baby name sites to try and find some statistics. I actually can't find a single person named "Rach" because all the sites assume I want statistics for the long form, even when I'm on the page for "Rach" and they also have a page for "Rachel." I'm interpreting this as being given the short form as your name is extremely rare.
Given that OP says this is a common English name (it's not), I have to imagine that they're referring to the common short form of Rachel. Pronounced as just the first syllable.
For those unaware, HP recently secured one of the most idiotic deals I have ever seen a state-level government agree to: all laptops in Quebec purchased with public funds must be HP laptops. They said this will "encourage competition in the laptop market."
I can't wait to see this new decision blow up in HP's face.