Definition

1. Verb (intransitive):
   • To enter a place or space: To move from an outside area into an enclosed or defined interior area.
   • To become involved or participate: To join or become part of an activity, situation, or discussion.
   • (Of the sun or moon) To become obscured by clouds: To disappear from view behind cloud cover.

Usage Examples

• Verb:
  • Please knock before you go in. (To enter a room.)
  • The cat refused to go in the house. (To enter a building.)
  • He decided to go in on the business deal with his partners. (To become involved in a venture.)
  • The sun went in just as we started our picnic. (To become hidden by clouds.)

Advanced Usage

• "to go in for something": To have a particular interest in or liking for something; to choose or take up an activity.
  • She doesn't really go in for team sports. (She is not interested in them.)
• "to go in with someone": To join with someone, especially in a financial or collaborative venture.
  • We went in with another family to buy a vacation home.
• "to go in through/out of": Used to specify the point of entry or exit.
  • We went in through the back door.

Variants and Related Words

• Go-in (noun, informal): An instance of entering or the right to enter. (Rare)
• Go into (phrasal verb): To enter; to discuss or investigate in detail; to begin a career or state.
  • He went into the room. (Entered)
  • The report goes into the causes of the problem. (Discusses in detail)
  • She went into law after college. (Began a career in)

Synonyms

• Enter: To come or go into a place.
• Come in: To enter (often used as an invitation or observation).
• Get in: To succeed in entering.

Related Phrasal Verbs

• Go in for: To like, enjoy, or choose something as an interest or hobby.
  • He goes in for classical music.
• Go in with: To combine resources or efforts with someone.
  • They went in with us to hire a tutor.

Related Idioms

• Go in one ear and out the other: To be heard but immediately forgotten or ignored.
  • My advice just goes in one ear and out the other.
• Go in guns blazing: To begin something with great force, energy, or aggression.
  • He went in guns blazing to the negotiation.

Verb

1. to come or go into
   • the boat entered an area of shallow marshes