1. The first canonical hour; at daybreak
   - morning prayer

1. Time of morning service; the first canonical hour in the Roman Catholic Church 
2. Morning worship or service; morning prayers or songs 
3. Morning

Type of: canonical hour

Encyclopedia: Matins

• oppressively
• oppressiveness
• oppressor
• opprobrious
• opprobriously
• opprobrium
• oppugn
• oppugnant
• Ops
• Opsanus tau
• opsin
• opsonin
• opsonisation
• opsonise
• opsonization
• opsonize
• opt
• opt out
• optative
• optative mood
• Optez
• opthalmic
• optic
• optic axis
• optic chiasm