Englishfor English speakers
confidence
Noun
—
Confidence is the state of trusting something, and being sure that something is going to happen.
I know you're trying to gain confidence in what you're doing.
in
Preposition
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Used to show that something is inside something else.
The cat is in the box.
—
Used to show that someone is at home, or is available.
Is John in?
The Doctor is now in.
—
Used to show movement towards the inside.
The rain came in through the window.
success
Noun
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Success is doing what you plan or want to do.
Getting 100% on the test gave him a feeling of success.