go-to

Etymology
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Adjective

 * 1) ; desirable; of choice.
 * 2) ; likely to perform in difficult circumstances.
 * 1) ; likely to perform in difficult circumstances.
 * 1) ; likely to perform in difficult circumstances.
 * 1) ; likely to perform in difficult circumstances.

Noun

 * 1) A person or thing that is one’s usual choice.