depend on/upon somebody/something phrasal verb ( see also ↑ depend )
1 . if something depends on something else, it is directly affected or decided by that thing:
The length of time spent exercising depends on the sport you are training for.
depend on how/what/whether etc
Choosing the right bike depends on what you want to use it for.
depending on something
The expenses you claim can vary enormously, depending on travel distances involved.
► Do not say that one thing ‘is depend on’ another. Say that one thing depends on or is dependent on another.
2 . to need the support, help, or existence of someone or something in order to exist, be healthy, be successful etc SYN rely on :
The country depends heavily on its tourist trade.
We depend entirely on donations from the public.
depend on somebody/something for something
Many women have to depend on their husbands for their state pension.
depend on somebody/something to do something
I’m depending on you to tell me everything.
depend on somebody/something doing something
We’re depending on him finishing the job by Friday.
3 . to trust or have confidence in someone or something:
You can depend on Jane – she always keeps her promises.