February
There are no countries that start with the letter "R" with 8 letters.
mosquito
sextets
briefing
There is no 8-letter word, but there are several 7-letter words:agnaticanticarcartingcratinggranitatracing
dandruff
A letter cannot have "8 letters" in it.
The entire difference is found in the fourth letter of those words ... the remaining 8 letters are identical in both. In one of the words, the fourth letter is the vowel 'a', whereas in the other one, the fourth letter is the vowel 'i'. Their definitions are also different.
There are no countries that start with the letter "R" with 8 letters.
mosquito
Monopoly
sextets
testiest
Increase and illusion begin with and I and are 8 letters.
-5
briefing
February, November and December all have 8 letters.