In Reply to: puzzle posted by peaceful_easyfeeling on October 26, 2011 at 03:09:32:
Not really sure but I think the common trait is that all the middle letters are in alphabetical sequence?
: These words have something in common:
: radium, fading, refine, campus
:
: Which of these words would also belong?
: WONDER, TACKLE, AVIATE, ROBUST