This is the 912th most frequent Lithuanian word.
šaltinis
"Šaltinis" in English means "source" or "spring" (as in a water spring).
In this context, "šaltinio" refers to a natural spring or source of water.
Vanduo iš šaltinio teka.
Water flows from the spring.
Here, "šaltiniu" denotes a source from which information is obtained, showcasing a metaphorical use.
Internetas tapo pagrindiniu informacijos šaltiniu.
The internet has become the main source of information.
In this case, "šaltinius" signifies the sources of information or references used for creating or verifying content.