This app still isn’t world famous.
The world really is coming to an end.
Other than assassins, nothing in this world is scarier than wasps.
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it uses the kun'yomi reading. Here's a mnemonic to help you to remember it:
Since you have generations of people making up this world, think of the rapper generation. What do they say all the time (obviously I don't know anything about rap)? They say "Yo yo yo!" (よ).