Definition of "MS"

(plural MSS) Abbreviation of manuscript.  examples

(numismatics) Initialism of mint state, a grading term.  examples

(nautical) M/S: Initialism of motor ship.  examples

(pharmacology) Initialism of morphine sulfate.

(cardiology) Initialism of mitral stenosis.

(neurology, uncountable) Initialism of multiple sclerosis.

(academics) Initialism of Master of Science.  examples

Initialism of middle school.  examples

(philately) Initialism of mini-sheet.  examples

(criminology) Initialism of murder-suicide.

Initialism of Mato Grosso do Sul, a state of Brazil.  examples

Initialism of Microsoft: an American multinational technology company founded in 1975.  examples

Abbreviation of Mississippi, a state of the United States of America.  examples