Final answer:
In Conversation view, clicking the Ignore button moves the selected conversation and all its messages to the Trash or Deleted Items folder, preventing further notifications and new messages from that conversation.
Step-by-step explanation:
In Conversation view, when you click the Ignore button, the selected conversation and all its messages are moved to the Trash folder or the Deleted Items folder, depending on the email service or email client you are using. Ignoring a conversation means that you no longer receive notifications or see new messages in that conversation. This feature is useful if you want to declutter your inbox and focus on important emails.