Suggestions will show after typing in the search input. Use the up and down arrows to review. Use enter to select. If the selection is a phrase, that phrase will be submitted to search. If the suggestion is a link, the browser will navigate to that page.
A pre-approval is a way for a Host to let you know that their listing is available when asked about a potential reservation. You have 24 hours to accept it.
If a host pre-approves you, you can automatically book your reservation for the dates you’ve enquired about without waiting for another response from them.