pm -abbr
- phase modulation
- premium
Pm -symbol
- promethium
PM -abbr
- paymaster
- permanent magnet
- postmaster
- post meridiem often not cap and often punctuated
- postmortem
- prime minister
- provost marshal
PMB -abbr
- private mailbox
pmk -abbr
- postmark
PMS [,pē-(,)em-'es] -n
- premenstrual syndrome
pmt -abbr
- payment