Originally Posted by: equator
If you use the third along with the second it would be called A add9.
In order for that chord to be an A9 chord, it should contain the flatted 7th plus the 9th.
I hope I didn't offend anybody, I’m just trying to help ;)

.

No offense taken, I'm just glad to see the Theory thread getting some exposure. You're correct, we should be thorough in the posts for those not familiar with theory. Sometimes shortcuts can be confusing for someone.
I've always automatically recognized a Suspended chord (unless specified differently) as the 4th interval because it's the sub-dominate to the root, which may not be known by someone learning from these threads.
I will drop shortcuts so that everything is spelled out clearly for all.
P.S. You should consider becoming a full member because there are a lot of great members with knowledge in every genre. Besides, it supports the site and is extremely fair with the membership fee and is well maintained.
Just a thought.