PSL has multiple meanings depending on the context. Here are some of the most common meanings:

• Pumpkin Spice Latte: PSL is short for Pumpkin Spice Latte, a coffee-based drink sold at and popularized by Starbucks in the fall. The latte is seasoned with pumpkin.

• Parallel Strand Lumber: PSL is part of a family of products, structural composite lumber (SCL), that are made of dried and graded wood veneers, strands or flakes that are layered and bonded together with waterproof adhesives. PSL is used as long-span beams, heavily loaded columns, and large headers, and is well-suited to applications where high bending or compression stress is required. It can be used in both interior and exterior applications.

• Other meanings: PSL can also stand for Port Saint Lucie (Florida), Pot Smoking Loser, Perverse Sexual Lust, Publication Status List, Physical Sublayer (signaling), Product Specification Level, Propulsion Systems Laboratory, and more. The specific meaning of PSL depends on the context in which it is used.