1.
Hereafter means from this time onwards. (FORMAL, WRITTEN)
I realised how hard life was going to be for me ~.
= henceforth, from now on
ADV: ADV with cl
2.
In legal documents and in written English, ~ is used to introduce information about an abbreviation that will be used in the rest of the text to refer to the person or thing just mentioned.
Michel Foucault (1972), The Archaeology of Knowledge; ~ this text will be abbreviated as AK.
ADV: ADV with cl
3.
The ~ is sometimes used to refer to the time after you have died, or to the life which some people believe you have after you have died.
...belief in the ~.
N-SING: usu the N
•
Hereafter is also an adjective.
...the life ~...
ADJ: n ADJ