pb

noun1

1. •
   Abbreviation of power brakes.

verb1

1. •
   (informal) To set a new personal best.

   • Vocab-wise, medalling and PB-ing are now totally part-and-parcelled, and most experts in South Korea believe podiumed, finalled and all-comered are not far off lexiconing. — 2011

adjective1

1. •
   Initialism of plant-based.

noun10

1. •
   Initialism of personal best.
2. •
   Initialism of peanut butter.
3. •
   Abbreviation of Punjab: a state of India.
4. •
   Initialism of prime broker or prime brokerage.
5. •
   Initialism of parallel bars.
6. •
   (old-fashioned) Initialism of power brakes.

   • [power steering, power brakes, power windows, power door locks, ice-cold air conditioning]
7. •
   Abbreviation of Paraíba: a state of Brazil.
8. •
   Initialism of plate block.
9. •
   (US) Initialism of patrol bomber.
10. •
    Initialism of West Papua: a province of Indonesia.