Bundle
Bunch
counter, noun
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word: You are counting your bundles. There are a lot of them, so you have to create tabs (たば) in your notebook to properly categorize everything. Imagine yourself doing this (physically creating the tabs in your notebook, even though your notebook didn't come with tabs).
花束よりも札束の方がほしいです。
I'd rather have a wad of cash than a bouquet of flowers.
ブロッコリー、一束200円だって。
It says broccoli is 200 yen per bunch.
そこにバラバラになってるコピー用紙、束にしといてもらえない?
Could you bundle up those loose sheets of copy paper for me?