flyspell-use-global-abbrev-table-p

flyspell-use-global-abbrev-table-p is a variable defined in `flyspell.el'.
Its value is

nil

Documentation:
If non-nil, prefer global abbrev table to local abbrev table.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 21.1 of Emacs.