According to your example you can use the Remove Duplicates feature of the sort command. You only have to replace all spaces/tabs by a line break which can be done for example with a non regex replace by searching for a space and replace it with ^p. Or more sophisticated with following UltraEdit style regex:

Find What: [ ^t]+
Replace With: ^p

nopid wrote:could u pls tell me where i does find the remove duplicates feature?!

File - Sort - Advanced Sort/Options. Sorts the whole file or only the current selection with the options you specify in this dialog.

nopid wrote:and is there a feature to delete every word with more than for example 8 chars ?

Can be done with a regular expression search and replace. I assume, you have already used the regex replace above to have only one word per line (and maybe you have also already sorted the lines).

To delete words with more than 8 characters use following UltraEdit style regex replace:

Find What: ?????????[~ ^t^p]++
Replace With:

There are 9 ?.

Or following a little bit more complicated regex which should also work in any text without preparation.

Find What: [~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p][~ ^t^p]++
Replace With:

[~ ^t^p] means any character except a space, a tab or a DOS line break. A ++ after this expression means 0 or more times of the expression/character before. See UE/UES help about the Find command for details.