student asking question

Does "rely upon" mean the same as "rely on"?

teacher

Native speaker’s answer

Rebecca

Good question! Yes, "rely on" and "rely upon" mean the same thing. In general usage, "upon" appears to be a little more formal and is used more often to refer to non-living things, whereas "on" is slightly more casual and is used most often to talk about depending on another person. "Rely on" is more commonly used than "rely upon" is and can be used in most situations. Ex: I relied a lot on my parents' help during school. Ex: You can't rely on your friends all the time. Sometimes you have to learn to do things alone. Ex: The health of the economy relies upon a variety of different factors.

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