Even the WCAG level A success criteria clearly states:
The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link context, except where the purpose of the link would be ambiguous to users in general.
together with its programmatically determined link context really is the operative phrase in this quote. I would encourage you to actually read the examples on the page you link to - several of them announce just one or two words.
The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link context, except where the purpose of the link would be ambiguous to users in general.
https://www.w3.org/WAI/WCAG21/Understanding/link-purpose-in-...
Having a single word announced by the screen reader to me would fail this criteria.