As I understand it,
rdepends lists packages which depend on the specified package.
$ apt-cache rdepends abiword abiword Reverse Depends: abiword:i386 xubuntu-desktop |python-carquinyol-0.96 pkpgcounter lubuntu-desktop junior-writing gnome |freemind-doc abiword-plugin-mathview abiword-plugin-grammar abiword-dbg
In this output, what does
As per this question, it means 'or' in
apt-cache depends, however that doesn't seem relevant here (
package2 depending on
abiword is impossible).