Giving your lat and long solves this, without recourse to proprietary systems, similar sounding words or requiring a proficiency in the English language.
The problem with lat/long at this resolution is -> Too many numbers. Get one wrong and you are somewhere else. what3words identifies the correct problem, provides a solution, but I agree that it has its flaws. I wish some independent org can come up with a better standard that addresses those.
What 3 words is pants.