Since this word has okurigana (hiragana attached to the kanji) you know that it's probably going to be a kun'yomi reading. You haven't learned this one yet, so here's a mnemonic to help you:
If you're going to disconnect something, it has (はず) to be the right thing! Don't go disconnecting the wrong plug, you'll cause no end of trouble! 🔌
Once you disconnect the plug, please use the exit.
I missed the target again.
We excluded Kyoko from the team.
Let's remove the engine.