没有 (méiyǒu) means “to not have” and can be used to express that someone or something lacks something else. This can be used to express a lack of something tangible, like a date for the prom, or something more abstract, like a goal in life, or time, or “patience for your shenanigans.” 没有 can be shortened to 没 without altering its meaning.
Structure
Examples
Wǒ méiyǒu shǒujī.
我没有手机。
我没有手机。
I don’t have a mobile phone.