frontal in WordNet English dictionary

1. the face or front of a building
   facade  frontage  frontal 
   
2. an adornment worn on the forehead
   frontlet  frontal 
   
3. a drapery that covers the front of an altar
   frontal 
   

1. of or relating to the front of an advancing mass of air
   "frontal rainfall"
   frontal 
   
2. meeting front to front
   "a frontal attack"; "a head-on collision"
   frontal  head-on 
   
3. belonging to the front part
   "a frontal appendage"
   frontal 
   
4. of or adjacent to the forehead or frontal bone
   "the frontal lobes"
   frontal