Here's a couple I picked up from the dictionary:
shadow (n)
Synonyms: shade, silhouette, outline, dark, darkness, gloom, gloominess, dusk, dimness
Antonym: light
Synonyms: ghost, specter, spirit, wraith, apparition, phantom
Synonyms: constant companion, alter ego, other self, double, doppelgänger
Synonyms: private investigator, private eye, private detective, gumshoe, sleuth, tail, tracker
Synonyms: hint, trace, suggestion, touch, … Read more
Yes, the "common" and "ground" go on the same bus bar, the other bar is for the "hot" or power connection. Normally all the grounds go at the bottom and the commons towards the top of the same bar.
If you have google, yahoo or mapquest, type in the numbers and click "Go", it should show you the location.