- go into something
- go into something1. and go in Lit. to enter something; to penetrate something. •
The needle went into the vein smoothly and painlessly.
•It went in with no trouble.
2. Fig. to enter some line of business or a profession. •He went into accounting when he got out of college.
•I want to prepare to go into law enforcement.
3. Fig. to examine or study something; to discuss and explain something. (See also go there.) •I need to go into this more.
•When we have time, we need to go into this question more thoroughly.
Dictionary of American idioms. 2013.