become more intense; "The debate intensified"; "His dislike for raw fish only deepened in Japan"
make more intense, stronger, or more marked; "The efforts were intensified", "Her rudeness intensified his dislike for her"; "Pot smokers claim it heightens their awareness"; "This event only deepened my convictions"
make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark
not widely distributed; "rare herbs"; "rare patches of green in the desert"
not widely known; especially valued for its uncommonness; "a rare word"; "rare books"
(of meat) cooked a short time; still red inside; "rare roast beef"
recurring only at long intervals; "a rare appearance"; "total eclipses are rare events"
marked by an uncommon quality; especially superlative or extreme of its kind; "what is so rare as a day in June"-J.R.Lowell; "a rare skill"; "an uncommon sense of humor"; "she was kind to an uncommon degree"
having low density; "rare gasses"; "lightheaded from the rarefied mountain air"
earnest and conscientious activity intended to do or accomplish something; "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try"