A long piece of writing or a speech about something, often boring or difficult to read or listen to.
Screeds are usually not very interesting or fun to read or listen to.
Examples:
The teacher gave us a screed to read for homework.
His speech was just a long screed about the history of potatoes.
I fell asleep while reading the screed.
The book was full of boring screeds about the weather.
She wrote a screed about her favorite TV show, but no one wanted to read it.
The politician's speech was a never-ending screed about taxes.