Brace yourself and prepare for your opponent’s attack!
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means provide so the verb vocab version is to provide.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: You have to provide your friends with their own sauna (そな) because they don't want to use your shower. This requires you to go out and buy a sauna for your house (very expensive) just so you can provide your needy friends with what they want (a sauna). Feel angry you have to provide this.