A friend; buddy; mate; someone you hang out with.

Informal form of address to a man; sometimes hostile or sarcastic.

To spend time socially as friends; to pal around.

Acronym in several fields, esp. the TV system Phase Alternating Line.

• Also: programmable array logic; phenylalanine ammonia lyase; permissive action link; prisoner at large; peer-assisted learning.

Abbreviation for Palestinian.