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我饿了,我们去吃饭吧。
I'm hungry; let's go eat.
Feeling a need or desire to eat food
他整天都在忙工作,都忘了饿了。
He was so busy with work all day that he forgot to eat.
肚子饿得咕咕叫。
My stomach is growling from hunger.
Used as both an adjective and a verb in Chinese (e.g., 我饿了 'I am hungry', 我饿了要吃饭 'I am hungry and need to eat').
Both mean 'hungry,' but 饥 is more formal/literary (e.g., 饥寒交迫 'cold and hungry'). 饿 is colloquial and universally used.
Use 了 after 饿 to indicate a change in state (e.g., 我饿了 'I am hungry now').
From Old Chinese *ʔŋaːs (饑), later merged with 餓 (OC *ŋaːls, 'hungry').
Commonly used in daily speech to express hunger. Can also be used metaphorically (e.g., '饥饿营销' 'hunger marketing' in business).