jam

Jam is a sweet spread for bread made by boiling fruit.

Example: I want blueberry jam on my toast.

A jam is a hard situation.

Example: I'm in a jam right now. Can you help me out?

A jam can be a blockage; congestion.

Example: I'll be late to work today because of that traffic jam.

If you jam something, it means you get it stuck or blocked in a small area; congested.

Example: The stapler that I was using jammed. Can I use that one please?

If you jam your finger or toe, it means it hit it against another object.