null - oner
- nursery
- nursery school
- nursery stock
- nursing home
- nursing services
- nurture
- nurture guardian
- nurture period
- nusance
- nutander
- nutauntre
- nutricius
- nuyt
- NW
- nymphomania
- o
- o. c.
- O. K.
- o. r.
- O. S.
- oath
- oath decisory
- oath ex officio
- oath in litem
- oath of abjuration
- oath of allegiance
- oath of calumny
- oath of grand juror
- oath of juror
- oath of loyalty
- oath of office
- oath purgatory
- oath suppletory
- oathworthy
- ob
- Ob alterius culpam tenetur, sive servi, sive liberi
- ob causam aliquem a re maritima ortam
- ob continentiam delicti
- ob contingentiam
- ob favorem mercatorum