Apparently the company president is raising a cow.
She came to a gyudon restaurant in a cow-spot patterned dress.
Dave keeps cows for milk.
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 uses the kun'yomi reading. Here's a mnemonic to help you to remember it:
You're leading the cows around the field. To get them to move, you yell out "USH, USH, USH!" (うし) because you have a speech impediment and want to say "MUSH MUSH MUSH." Go ahead and say this out loud, yelling it if you can.