This is the 2941st most frequent German word.
ali
"Ali" is not a German word. It is primarily a name.
This sentence uses 'Ali' as a proper noun, referring to a person's name.
Ali ist ein fähiger Programmierer.
Ali is a capable programmer.
Here, 'Ali' again acts as a proper noun, representing an individual's name in a question about their presence.
Ich frage mich, ob Ali heute zur Arbeit gekommen ist.
I wonder if Ali came to work today.
In this context, 'Ali' identifies a person providing support to a group, again used as a proper noun.