How many three letter words can be formed allowing repetition of letters?

Question

How many three letter words can be formed allowing repetition of letters?

Answer 1

If you mean words of three letters in length whether or not its an actual word in english (and using the english alphabet) it would be:

26 * 26 * 26 = 17,576.

if you mean valid 3 letter words, its a lot less. According to the link below (which is from 1998) its 975.

Answer 2

I thinks it about   25,418,658,280

Answer 3

There are 972 three-letter words that are included in the Scrabble Players Dictionary.

These words are required to be listed it at least three of the top five English dictionaries to qualify. These do not include capitalized words or acronyms unless they are also used as common words. Such as ted; a man’s name and thus capitalized, also means “to spread for drying".