This is the 624th most frequent Japanese word.
ゼロ
"ゼロ" means "zero" (the number 0).
Here, 'ゼロ' denotes a figurative lack of patience, describing the amount as negligible or non-existent.
彼の忍耐力はほぼゼロだと言えます。
One could say his patience is almost zero.
'ゼロ' is used metaphorically to represent a very low probability, often implying an almost impossible chance.
その可能性はゼロに近いです。
The likelihood of that is close to zero.
In this sentence, 'ゼロ' means the number '0' and is used to emphasize having no money left. It directly translates to 'zero' in English.