1
general::
1. Enter somewhere or something; Also fit inside something. For example, Don't go into this building, or The tractor is too big to go into the shed. [c. A.D. 1000] 2. Enter a particular state or condition, as in She's about to go into hysterics, or I'm afraid he went into a coma. [Second half of 1600s] 3. Enter a profession or line of work, as in She decided to go into politics. [Early 1800s] For synonyms, see GO IN FOR, def. 2; TAKE UP. 4. Investigate or discuss, especially in detail. For example, We haven't time to go into the entire history of the project. [Early 1800s] Also see ENTER INTO, def. 4. Also see the subsequent entries beginning with GO INTO.
American Heritage Idioms
2
general::
Phrase(s): go into something
1. 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.
McGrawhill's American Idioms And Phrasal Verbs