blue·line or blue line 
(bllīn′)
(bllīn′)n.
Either of two blue lines running across an ice-hockey rink, usually 60 feet from each goal, and dividing the rink into defensive, neutral, and offensive zones.
- dismissive
- dismount
- dismountable
- Disney
- Disneyfication
- Disneyfy
- disobedience
- disobedient
- disobediently
- disobey
- disoblige
- disobligingly
- disorder
- disordered
- disorderedly
- disorderedness
- disorderliness
- disorderly
- disorderly conduct
- disorderly house
- disorganization
- disorganize
- disorganized schizophrenia
- disorient
- disorientation