Select the most appropriate meaning of the given idiom.

All bark and no bite

Full of talk, but low on action

The most appropriate meaning of the idiom "all bark and no bite" is full of talk, but low on action.

It means that someone is all talk and no action. They are very good at making threats or promises, but they are not willing to back them up. The idiom is often used to describe someone who is not to be taken seriously.

The other options are not correct.

• Someone who sticks to his words: This is the opposite of "all bark and no bite".
• Actions are stronger than mere words: This is a related idiom, but it does not mean the same thing as "all bark and no bite".
• Not being able to understand anything: This is not related to the idiom "all bark and no bite".