2-Letter Words Starting: P

• a Mid-Atlantic state; one of the original 13 colonies, with capital Harrisburg

• an informal term for a father; probably derived from baby talk

• a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

• an electronic amplification system used as a communication system in public areas

• a unit of pressure equal to one newton per square meter

• someone who can be employed as a detective to collect information and assist in criminal investigations

• the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

• the 16th letter of the Greek alphabet

• the scientist in charge of an experiment or research project

• an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs

• the 17th letter of the Hebrew alphabet