Bulgarians (българи, Bǎlgari) are a South Slavic ethnic group who are native to Bulgaria and its neighboring regions.
Grecoman or Graecoman (Greek: Γραικομάνοι, Grekománoi, Bulgarian: Гъркомани, Garkomani, Macedonian: Гркомани, Grkomani, Romanian: Grecomani, Albanian: Grekomanë, Aromanian: Gricumanji) is a pejorative term used in Bulgaria, the Republic of Macedonia, Romania and Albania to characterize Arvanitic-, Aromanian-, and Slavic-speaking Greeks.
Macedonia is a geographical and historical region of the Balkan peninsula in southeastern Europe.
Macedonians or Macedonian Bulgarians (Македонски българи or Mакедонци), sometimes also referred to as Macedono-Bulgarians or Macedo-Bulgarians is a regional, ethnographic group of ethnic Bulgarians, inhabiting or originating from the region of Macedonia.
The Morava Valley (Поморавље/Pomoravlje), is a general term which in its widest sense marks valleys of any of three Morava rivers in Serbia: the West Morava (Западно Поморавље/Zapadno Pomoravlje), the South Morava (Јужно Поморавље/Južno Pomoravlje) and the Great Morava (Велико Поморавље/Veliko Pomoravlje).
Serbomans (србомани / srbomani, сърбомани, sarbomani, србомани, srbomani) was a Bulgarian pejorative term used by Bulgarian nationalists for inhabitants in the region of Macedonia that claimed Serbian ethnicity (declared as Serbs) and supported Serbian national ideals until the middle of the 20th century.