1. To a high degree or extent; favourably or with much respect
   "extremely interesting"
   - highly, majorly 
2. To an extreme degree
   "extremely cold"; "extremely unpleasant"
   - exceedingly, super, passing

See also: extreme

• common wart
• common wasp
• common water snake
• common watercress
• common wheat
• common white dogwood
• common winterberry holly
• common wolffia
• common wood sorrel
• common wormwood
• common year
• common yellowthroat
• common yellowwood
• common zebra
• common-law marriage
• commonage
• commonality
• commonalty
• commoner
• commonly
• commonness
• commonplace
• commonplace book
• commonplaceness
• commons