limitations clarification request

[Ed Morton]

In the documentation section at 
https://www.gnu.org/software/gawk/manual/html_node/Implementation-Limitations.html 
we see some definitions including:

   Item Limit
   Length of input record                                 MAX_INT
   Size of a field MAX_INT
   Size of a literal string MAX_INT
   Size of a printf string MAX_INT

Could we have the updated to say what the units are for each:

   Item Limit
   Length of input record in foo                      MAX_INT
   Size of a field in foo MAX_INT
   Size of a literal string  in foo                        MAX_INT
   Size of a printf string  in foo                        MAX_INT

where "foo" is "bytes" or "characters" or whatever is correct for each 
and could you also explain there what "Size" means if it's different 
from "Length" or use the same term for all of them?

    Ed.