I can't connect connect my NIKON dslr d5500 with photoshop lightroom 5 will you tell me how can i connect this dslr with lightroom????
Lightroom does not yet support the D5500. Adobe has indicated that an interim solution is for you to use DNG converter 8.8 to create digital negative copies that you can open using Lightroom. It will probably be included in the next release of Lightroom, whenever that might be. It could be today, or it could be months. Anybody who knows isn't allowed to say. And anyone who tells you a date doesn't really know.
And if you're talking about tethering, tethering for the D5300 was only added in Lr 5.5.
Given that tethering depends on the release by Nikon of an SDK with the relevent tethering code for your camera and on the timings of the Lightroom release schedule, it could be a while...