(medicine) Initialism of people who inject drugs.

(electronics) printed wiring board - A circuit board blank created by etching away material thereby exposing non-conductive lands between conductive traces. What a printed circuit assembly is called before it is "stuffed" with components.

(rail transport) Abbreviation of permanent way.

power / (nuclear power) pressurized water reactor

(knitting) Acronym of purlwise.

Initialism of process window index.

Initialism of Pro Wrestling Illustrated. / (computing) Initialism of Public Windows Interface. / (video games) Initialism of Perfect World International.

Pronunciation spelling of pretty.

Pronunciation spelling of princess.

plural of PWB