This is the 569th most frequent Bulgarian word.
източници
"Sources."
'Източници' is used here to mean 'sources' referring to origins or points of provision of information.
Науката изисква надеждни източници на информация.
Science requires reliable sources of information.
'Източници' is used here to denote 'sources' in the context of points of origin or providers of energy.
Източниците на енергия трябва да са устойчиви и екологични.
Sources of energy should be sustainable and environmentally friendly.
'Източници' is used here in the sense of 'sources,' meaning origins or bases of cultural inspiration.