How to use the preposition 'in' with explanations and examples : 2

Usage of the preposition in with explanations and examples:

1. Part of a Larger Entity

In can show being part of a larger entity or structure.
She works in the marketing department. (Part of an organization)
The event is in the conference hall.
(Part of a location)

2. Enclosure or Container
In Part of a Larger Entity
In can show being part of a larger entity or structure.
She works in the marketing department. (Part of an organization)
The event is in the conference hall.
(Part of a location)

3. Purpose or Function
In is used to show the purpose or function of something.
These tools are used in woodworking. (Purpose of use)
The medicine is effective in treating colds. (Function within a context) is used to indicate being enclosed or contained within something.
The toys are in the box.
(Enclosed within a container)
There's a surprise in the envelope. (Contained within an object)

4. Influence or Impact
In can denote influence or impact within a situation or context.
His words had a profound effect in the meeting.
(Influence within a situation)
She played a crucial role in the decision-making process.
(Impact within a process)

5. Belonging or Ownership
In can indicate possession, belonging, or ownership.
The key is in my pocket.
(Possession)
The painting is in her collection.

(Belonging or ownership)