General:
* Bundle: A collection of items tied or wrapped together.
* Package: A container holding something, often wrapped or sealed.
* Parcel: A small package wrapped for sending.
* Pack: A collection of things, especially when wrapped or tied.
Specific:
* Data packet: A unit of data transmitted over a network.
* Envelope: A sealed paper container for letters or documents.
* Sachet: A small sealed packet containing powder or liquid, often for a single use.
* Capsule: A small sealed container for medicine or other substances.
* Bag: A flexible container, often made of paper or plastic.
For example:
* "I bought a packet of cookies." (package or pack would work here too)
* "The packet of data arrived at the server." (data packet is the more precise term)
* "I put the letter in an envelope." (packet wouldn't work here)
Could you provide more context about what kind of "packet" you're referring to? This will help me suggest a more accurate alternative.