S: (n) crown, treetop (the upper branches and leaves of a tree or other plant)
S: (n) peak, crown, crest, top, tip, summit (the top or extreme point of something (usually a mountain or hill)) "the view from the peak was magnificent"; "they clambered to the tip of Monadnock"; "the region is a few molecules wide at the summit"
S: (n) crown, crownwork, jacket, jacket crown, cap ((dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth) "tomorrow my dentist will fit me for a crown"
S: (n) crown, crest (the center of a cambered road)