Missing | Mean of missing in English Dictionary

/ˈmɪsɪŋ/

• unable to be found
1. My keys are missing. [=I can't find my keys]
2. One of his front teeth is missing. [=he does not have one of his front teeth; he is missing one of his front teeth]
3. a missing tooth
4. missing children
5. A few books are missing from the shelf.
6. She discovered that some important papers were missing from her desk.
7. My keys have gone missing again. [=I cannot find my keys again; my keys are missing again]
• needed or expected but not included
1. The new director has provided the missing ingredient that was needed for the show's success.
2. It's a good sauce, but there's something missing. [=it lacks something that would make it better]
3. There was something missing from his life.