MD.

 Dictionary entry overview: What does Md. mean? 

• MD. (noun)
  The noun MD. has 1 sense:

1. a Mid-Atlantic state; one of the original 13 colonies

  Familiarity information: MD. used as a noun is very rare.

 Dictionary entry details 

• MD. (noun)

Sense 1

Meaning:

A Mid-Atlantic state; one of the original 13 colonies

Classified under:

Nouns denoting spatial position

Synonyms:

Free State; Maryland; MD; Md.; Old Line State

Instance hypernyms:

American state (one of the 50 states of the United States)

Meronyms (parts of "Md."):

Aberdeen (a town in northeastern Maryland)

Annapolis; capital of Maryland (state capital of Maryland; site of the United States Naval Academy)

Baltimore (the largest city in Maryland; a major seaport and industrial center)

Fort George G. Meade; Fort George Gordon Meade; Fort Meade (a United States Army base in Maryland; headquarters of the National Security Agency)

Frederick (a town in northern Maryland to the west of Baltimore)

Hagerstown (a town in northern Maryland)

Chesapeake Bay (a large inlet of the North Atlantic between Virginia and Maryland; fed by Susquehanna River)

Potomac; Potomac River (a river in the east central United States; rises in West Virginia in the Appalachian Mountains and flows eastward, forming the boundary between Maryland and Virginia, to the Chesapeake Bay)

Susquehanna; Susquehanna River (a river in the northeastern United States that rises in New York and flows southward through Pennsylvania and Maryland into Chesapeake Bay)

Holonyms ("Md." is a part of...):

America; the States; U.S.; U.S.A.; United States; United States of America; US; USA (North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776)

Mid-Atlantic states (a region of the eastern United States comprising New York and New Jersey and Pennsylvania and Delaware and Maryland)

South (the region of the United States lying to the south of the Mason-Dixon line)