We use 'depend' to say we need help or support from someone or something. It means we trust or rely on them for what we want or need.
I depend on my parents for help.
You can depend on me to come.
Sometimes 'depend' means that one thing happens only if another thing is true or happens. It shows that one thing controls or decides the other.
The party depends on the weather.
Success depends on hard work.
'Depend' can mean needing money or help to live because you do not have enough yourself. It is often used with financial support.
He depends on his salary to live.
Many students depend on loans to study.
Here, 'depend' means that something changes or is different because of another thing. It shows how one thing influences another.
Taste depends on the ingredient quality.
Prices depend on supply and demand.
It means something is certain or decided because of other information or conditions. It shows a logical connection or result.
His decision depends on the facts he has.
The plan depends on the resources available.