The playground 'gives every appearance of' being a safe place for children [=the playground appears to be a safe place for children], but a tragic accident occurred there recently.
He has announced that this will be his final/last 'appearance' with the band. [=the last time that he will perform in public with the band]
I wasn't expecting him to come and was surprised by his sudden 'appearance'. [=I was surprised when he suddenly appeared/arrived]
(..) Think Finn, how can you keep everyone from finding out? Find out about what, Finn? Manfried! The talking piñata! Your convinient appearance gives me a great idea. Everybody, grab a stick! New game! We're gonna smash some piñatas! What? (..)2010 TvShow: Adventure Time Title: Slumber Party Panic Season: 1 Episode 1