offender against the law - organic
- operation of law
- operational
- operational before
- operational director
- Operational Taskforce
- operative
- operative with respect to the past
- operative words
- operator
- opere citato
- operire
- operose
- operosus
- opes
- opiate
- OPIC
- opifex
- opinabilis
- opinari
- opine
- opinio
- opinio praeiudicata
- opinion
- opinion evidence
- opinion letter
- opinion of the court
- opinion of the jury
- opinion testimony
- opinion, concurring
- opinion, dissenting
- opinion, expert
- opinion, majority
- opinion, plurality
- opinionated
- opinionated person
- opinionative
- opinionativeness
- opinionist
- opitulari
- oppidan
