prom 
(prŏm)
(prŏm)n.
A formal dance held for a high-school or college class typically at or near the end of the academic year.
[Short for PROMENADE.]
- propitiousness
- propjet
- proplastid
- propofol
- propolis
- proponent
- proportion
- proportionable
- proportionably
- proportional
- proportionality
- proportionally
- proportional representation
- proportionate
- proportionately
- proportionateness
- proportioner
- proportionment
- proposal
- propose
- proposer
- proposition
- propositional
- propositional calculus
- propositional function