Words that start with U

Upside-down unicorns under an ultramarine umbrella.

Uis forUncork

You uncork a bottle by removing the cork, usually with a corkscrew.

Uis forUnder

Something is under something else if it is lower than it. This cat is under the chair. The opposite of under is over.
Underdone describes food that hasn't finished cooking. Sometimes food is underdone on purpose.
Undergrowth is a word used to describe plants that grow underneath larger plants and trees in a forest or jungle.
Underneath is a more interesting way of saying under. The cat in the picture is underneath a dishwasher.
Something is underripe if it isn't ripe yet. Underripe fruit is usually green and hard.
An undershirt, also called a singlet or vest in some countries, is a garment you wear under other clothes as an extra layer. Undershirts are usually white and have no sleeves. An undershirt worn as outerwear is usually called a tank top.
A person or animal is underweight if they weigh less than they should. When you are underweight you can easily see your bones.
You are undressed when you are wearing either no clothes or you are not wearing enough clothes. The people in the picture are undressed. When you are taking your clothes off, you are said to be getting undressed. The opposite of undressed is dressed.
Something is unfinished if it has not been completed yet. A similar word to unfinished is incomplete.The opposite of unfinished is finished.