a figure formed by two lines that meet at a point

feeling or showing anger; mad

a living thing that can move from place to place and that eats plants, other animals, or both

to bring to life; to make lively or energetic

the part of the body where the leg connects to the foot

a substance produced by the body that attacks invading germs

a small, rocky object that orbits the Sun

a person trained to travel and work in space

a person trained in sports, games, or other activities that require strength, speed, and skill

to act aggressively against an opponent, often with weapons in a battle; to act harmfully toward