Dash in a keyword

[Hubie]

i posted in the "Keyword Discussion" group, but I wanted to get an adwords related post on this...

what's up a 2 word keyword with a dash in it? you know...words like "add-on" or "sub-category" where people search it that way, with a dash, and without a dash.

will adwords bring it up regardless of how they are searched for, or do you need both in your account?

[smallcompany]

As I could recall "hyphen" is treated as "empty space", therefore a keyword like "add-on" is as same as "add on".

AWA would be the best source to either confirm or deny this.

[poster_boy]

Hyphens are one of several characters which are ignored, as smallcompany stated, making keywords with & without hyphens duplicates of one another. But, other characters are considered differently (apostrophes, for one) making the with & without versions different keywords.

[wanderer1985]

Hyphen is considered by google as a space. this is for sure.

[nutkenz]

Which aren't considered to be equal to spaces by Adwords?

Key word
Key-word
Key_word
Key/word
Key.word
Kéÿ wórd
Key'word