adjective or noun

[feborio]

Can you please tell
me which one of the two sentences below is correct and give me the explanation of the grammar?

Thanks

the yesterday's meeting
the yesterday meeting
the meeting of yesterday

thanks

[Aligor]

All your 3 phrases are correct.

"the yesterday's meeting" and "the yesterday meeting" are interchangeable, in the first phrase "yesterday" is a possessive noun, and in the second one "yesterday" is a noun used as adjective.

The "meeting of yesterday" is more formal than the other two.