cut (one's) teeth in (something)

cut (one's) teeth in (something)

To gain experience with something, especially at a young age. A reference to one's teeth coming in when one is a child. Jen may be young, but she cut her teeth in academic writing, so her perspective and expertise will be invaluable to us.
See also: cut, teeth
Farlex Dictionary of Idioms.

cut your ˈteeth on something

learn or gain experience from something: It was a small experimental theatre company and many of today’s most successful actors cut their teeth there.
See also: cut, on, something, teeth
Farlex Partner Idioms Dictionary
See also:
  • cut your teeth on something
  • at the tender age of
  • good die young
  • only the good die young
  • sweet young thing
  • spring chicken
  • bright young thing
  • young blood
  • an old head on young shoulders
  • young