bite
To cut or grip something using your teeth.
To bite means to cut, grip, or pierce something with your teeth. When you bite into an apple, your teeth break through the skin and into the fruit's flesh. A dog might bite a stick to carry it, using its teeth to hold on tight.
The word carries different feelings depending on the context. A friendly bite happens when you take a bite of pizza or when a fish bites your hook while fishing. But bites can be dangerous too: a snake's venomous bite, a mosquito bite that leaves an itchy welt, or an angry dog's bite that breaks the skin.
Beyond the physical act, bite appears in several useful expressions. When someone says a comment has bite, they mean it's sharp and critical. If a cold wind has bite, it stings your face. When you bite off more than you can chew, you've taken on a task too difficult to handle. And when something bites the dust, it fails or breaks down completely.
A bite can also mean a small portion of food, like asking for just a bite of someone's sandwich. In fishing, when you feel a bite on your line, you know a fish is testing your bait.
The past tense is bit (“the dog bit my shoe”), and the past participle is bitten (“I've been bitten by mosquitoes”).