/usr/share/opendict/dictionaries/plain/freedict-eng-por.dict.dz/file/freedict-eng-por.index is in dict-freedict-eng-por 1.3-4ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/opendict/dictionaries/plain/freedict-eng-por.dict.dz/file/../../../../../dictd/freedict-eng-por.index