When you're running low on something or have depleted your supply, you might think you're "out of" that particular item. However, there are a number of synonyms you can use to express this concept. For example, you might say you're "devoid of" something, meaning you're completely lacking it. Alternatively, you might be "bereft of" that thing, implying a sense of loss or disappointment. Other options include "exhausted," "used up," "drained," "depleted," or "spent." Whether you're talking about physical resources like food or energy, or emotional states like patience or enthusiasm, there are plenty of ways to describe being "out of" something.