i Register
In some senses, prior is marked as US. Watch for register when choosing this word.
ADJ.
contrary, epilepsy, known, new, other, proposed, right, smaller
She had no prior knowledge of the proposed changes to the schedule.
VERB + PRIOR
blow, happened, made, means, stall
The accident happened prior to the new safety regulations being introduced.
PRIOR + NOUN
announcement, arrival, departure, engagement, expectations, knowledge, operation, product
We had no prior knowledge of the surprise party planned for our anniversary.
PREP.
without
We made the decision without any prior discussion with the team members.