have it in (one)

have it in (one)

To have or possess a specific skill. Wow, Alice is a beautiful singer—I didn't know she had it in her.
See also: have

have it in one

Have the ability to accomplish something. As Sir Arthur Conan Doyle put it in A Study in Scarlet (1887), "I know well that I have it in me to make my name famous."
See also: have, one

have it ˈin you (to do something)

have the unexpected ability, determination, courage, etc. to do something: She managed to finish the crossword all on her own! I didn’t know she had it in her!
See also: have