grep ^.rolg.$ /usr/share/dict/wordsbrolgabrol·ga">brol·ga">brol·ga   [brol-guh] nouna large Australian crane, Grus rubicunda, with silvery-gray plumage and a red patch on the head, noted forits elaborate courtship dance.
walrus
monkey
pigpen
Some six letter words with FF in the middle are:wafflebafflebufferduffermufflepifflesufferduffelpuffindiffer
grep ^.rolg.$ /usr/share/dict/wordsbrolgabrol·ga">brol·ga">brol·ga   [brol-guh] nouna large Australian crane, Grus rubicunda, with silvery-gray plumage and a red patch on the head, noted forits elaborate courtship dance.
grep ^.rolg.$ /usr/share/dict/wordsbrolgabrol·ga">brol·ga">brol·ga   [brol-guh]nouna large Australian crane, Grus rubicunda, with silvery-gray plumage and a red patch on the head, noted forits elaborate courtship dance.
Shrimp
6
walrus
Salmon
spiders
dog
monkey
pigpen
rabbit has 6 letters R-A-B-B-I-T
vixens ??