口 (kǒu) is an HSK 1 Chinese word. Its most common English meaning is mouth; depending on context, it can also mean classifier for things with mouths (people, domestic animals, cannons, wells etc) or classifier for bites or mouthfuls. Read the examples below to choose the meaning that fits the sentence.
01mouth
02classifier for things with mouths (people, domestic animals, cannons, wells etc)