N O is all I can think. Please edit.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern D-O-K--K. That is, eight letter words with 1st letter D and 3rd letter O and 5th letter K and 8th letter K. In alphabetical order, they are: dropkick
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern D-O-K-D. That is, seven letter words with 1st letter D and 3rd letter O and 5th letter K and 7th letter D. In alphabetical order, they are: drooked drouked
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --K--O-D-. That is, nine letter words with 3rd letter K and 6th letter O and 8th letter D. In alphabetical order, they are: alkaloids
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern O----K-D. That is, eight letter words with 1st letter O and 6th letter K and 8th letter D. In alphabetical order, they are: outasked outbaked
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -K--D-O. That is, seven letter words with 2nd letter K and 5th letter D and 7th letter O. In alphabetical order, they are: skiddoo
docket
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern K---O-D. That is, seven letter words with 1st letter K and 5th letter O and 7th letter D. In alphabetical order, they are: kemboed keyword kimboed
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -K-DDOO-. That is, eight letter words with 2nd letter K and 4th letter D and 5th letter D and 6th letter O and 7th letter O. In alphabetical order, they are: skiddoos
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern DO--K-O-. That is, eight letter words with 1st letter D and 2nd letter O and 5th letter K and 7th letter O. In alphabetical order, they are: doorknob
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern O-K-DO--. That is, eight letter words with 1st letter O and 3rd letter K and 5th letter D and 6th letter O. In alphabetical order, they are: ockodols
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern DO-K--D-. That is, eight letter words with 1st letter D and 2nd letter O and 4th letter K and 7th letter D. In alphabetical order, they are: dockside