Mouth opened slightly.

Meaning: This means that the cat's mouth moved a little bit, indicating that it was about to make a sound or eat something. It's like saying, The cat's mouth moved a little.

Choice of Words: Mouth is the opening in a cat's face that is used for eating, drinking, and making sounds. Opened is the past tense of the verb 'open', which means to move or make something move so that it is no longer closed. Slightly is an adverb that means in a small or limited way.

Alternative Expressions

The mouth was slightly open.

Meaning: This means the same thing as the first sentence, that someone's mouth was open a little bit.

Choice of Words: The is used to refer to a specific thing. Mouth is the opening in your face that you use to eat and speak. Was is a verb that means to exist in a certain state. Slightly means a little bit or not very much. Open means to make something wider by moving its parts apart. When you put them together, "The mouth was slightly open" means that someone's mouth was open a little bit.

A slight opening appeared in the mouth.

Meaning: This means the same thing as the first two sentences, that someone's mouth opened a little bit.

Choice of Words: A is used to refer to one of something. Slight means a little bit or not very much. Opening means to make something wider by moving its parts apart. Appeared means to come into view or become visible. In is used to indicate a location. The is used to refer to a specific thing. Mouth is the opening in your face that you use to eat and speak. When you put them together, "A slight opening appeared in the mouth" means that a small opening became visible in someone's mouth.

Related Expressions