n. the inability to remember a word; a word that is on the tip of your tongue

This is that frustrating feeling when you know what the word you want to use means, however you cannot locate it in the extensive filing cabinet of your brain. Take a break when this happens and hope that the word will appear. The brain is a very complex and important organ in the human body, therefore it is imperative for us to occasionally give it a well deserved break. It is difficult not to get irritated when your brain fails you, but next time remember to pause to reflect on the thought that your brain has to do myriad things in order for your successful survival. Therefore, giving your brain a break might just be the key to the discovery of those lost words. After all, the brain can be a mysterious thing.