mouth

"The baby opened its mouth to receive the milk from its mother. "

"The mouth of the river is a good place to go birdwatching in spring and autumn."

"The mouth of a cave"

"My kid sister is a real mouth; she never shuts up."

"The horse trainer carefully adjusted the mouth of the bridle, ensuring it fit comfortably in the horse's mouth. "

"The class's mouth spoke in favor of a longer recess. "

"My child's mouth was filled with a loud cry as he fell and scraped his knee. "

"My sister's mouth was full of complaints about the noisy neighbours. "

"Seeing the bad grade on his report card, he made a mouth of disappointment. "

"He mouthed his opinions on the subject at the meeting."

"The prompter mouthed the words to the actor, who had forgotten them."

"The student mouthed the answer loudly, almost shouting. "

"The child mouthed the cookie, feeling its texture but not eating it. "

"The baby eagerly mouthed the colorful, soft teething toy. "

"The mother bear mouthed her cubs gently, licking their fur to keep them warm. "

"The children were mouthing at the teacher after she told them off for being noisy. "