source
Translation
source, origin, cause, informant
Examples
What is the source of this river?
What is the source of this river?
He is a reliable source of information.
He is a reliable source of information.
Lack of sleep is a source of many problems.
Lack of sleep is a source of many problems.
Grammar Patterns
the source of ((sth.)) What is the source of this river?
a source of ((sth.)) Lack of sleep is a source of many problems.
Similar Words
Synonyms: origin, root, cause, basis
Etymology
From Old French 'sorse', from Latin 'surgere' meaning 'to rise'. A source is where something 'rises' from.
Memory Tips
Think of a water 'source' like a spring, where everything starts. Information also flows from a 'source'.