This is the 1455th most frequent Russian word.
источников
"Источников" means "sources" (genitive plural form).
'Источников' refers to informational sources or references used for gathering information.
Для написания работы, нам понадобилось множество источников.
For writing the paper, we needed numerous sources.
'Источников' in this context denotes physical light sources used for illumination.
Картину освещали с нескольких источников света.
The painting was illuminated by several sources of light.
'Источников' here implies origins or sources from which ideas or inputs are derived.