Initialism of human immunodeficiency virus 2.

Alternative spelling of grade two

Synonym of BOGO

(Philippines) Alternative spelling of kinder two

two-thirds

Under the Whyte notation system, a steam locomotive that has two leading wheels, three sets of eight driving wheels, and a two trailing wheels.

(organic chemistry) The IUPAC name for methacrylic acid.

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-6-0 wheel configuration.

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-6-4 wheel configuration.

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-8-0 wheel configuration.