
Chip in
Informal Situations
Used in casual conversations, not for formal occasions or official documents.

Let's all chip in for pizza tonight!
Group Efforts
Implies collaboration or joint effort among people for a shared goal.

We all need to chip in to finish this project by Monday.
Volunteer Contributions
Often suggests voluntary contribution, without precise amounts or obligations.

Whenever there is a neighborhood clean-up, many residents chip in.
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