Long, narrow pieces of colored paper or plastic that are often hung up for decoration.
Streamers are usually used to make a place look pretty or to celebrate something special.
Examples:
We hung up streamers for the party.
The room was full of colorful streamers.
The streamers fluttered in the breeze.
The streamers made the room look like a rainbow.
She had so many streamers, it looked like a parade.
The streamers danced in the air.