트이다

For something that has been closed or blocked to be cleared and become passable.

For a market, etc., to be open.

For a business relationship or network to form.

For bad luck to pass, improving one's situation.

For one's mind or emotion to get over a worry or trouble.

For one's thought or intelligence to reach a substantially high level from a low level.

For a voice hardly heard due to a sore throat, etc., to be heard again.

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