There are several such words. Exclude plurals (such as "eggheads" and "beehives") they include "Buddhism" (or "Buddhist"), "diarrhea", "freehand", "outthink", "sapphire", "wellhead" and "zucchini", as well as a few less polite terms ending in "hole".
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 7 words with the pattern -----H-I. That is, eight letter words with 6th letter H and 8th letter I. In alphabetical order, they are:
kachahri
kazachki
lekythoi
pihoihoi
piroshki
pirozhki
shanghai
knee-high
see-through
telephotography
theatrics
hush-hush
Habitual
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I-A--A--. That is, eight letter words with 1st letter I and 3rd letter A and 6th letter A. In alphabetical order, they are: inaurate
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern I----A-I. That is, eight letter words with 1st letter I and 6th letter A and 8th letter I. In alphabetical order, they are: ignorami
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern --I--J--. That is, eight letter words with 3rd letter I and 6th letter J. In alphabetical order, they are: stickjaw
database
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern I---AI--. That is, eight letter words with 1st letter I and 5th letter A and 6th letter I. In alphabetical order, they are: ibogaine ingrains
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ----KY--. That is, eight letter words with 5th letter K and 6th letter Y. In alphabetical order, they are: thankyou
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern --I--Q--. That is, eight letter words with 3rd letter I and 6th letter Q. In alphabetical order, they are: clinique critique qaimaqam
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ----WA-A. That is, eight letter words with 5th letter W and 6th letter A and 8th letter A. In alphabetical order, they are: gurdwara
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -A---Z-A. That is, eight letter words with 2nd letter A and 6th letter Z and 8th letter A. In alphabetical order, they are: kazatzka
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern ---M-I-I. That is, eight letter words with 4th letter M and 6th letter I and 8th letter I. In alphabetical order, they are: duumviri
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -----APA. That is, eight letter words with 6th letter A and 7th letter P and 8th letter A. In alphabetical order, they are: jipijapa
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern A---II--. That is, eight letter words with 1st letter A and 5th letter I and 6th letter I. In alphabetical order, they are: alibiing anobiids arctiids