harry potter and the deathly hallows

...i heard this is what the 7th book's name from the websites and stuff!!!

and i read that the deathly hallow mean something like dieing from a reversed spell or something like that soo yeha anyone wanna explain??

i heard on a podcast that in the title there is death and hallow (or holy), so its likely a reference to the horcurxes since to voldemort they are sacred i guess...but another person had a theory that if you take death and add holy...its a holy death or perhaps a sacrifice...maybe harry is going to sacrifice himself for everyone else😭 i hope it doesn't happen