| ass |
a mammal with long legs and hooves that is closely related to the horse. A donkey is a domestic ass. Asses look like horses but are smaller and have longer ears. Wild asses live in Africa and Asia and are in danger of becoming extinct. [1/2 definitions] |
| baptize |
to perform the Christian ceremony of dipping in or sprinkling with water as a symbol of becoming a member of the church. [1/2 definitions] |
| bar mitzvah |
a Jewish ceremony that celebrates a boy becoming an adult and the beginning of his religious duties. The bar mitzvah usually takes place when the boy is thirteen years old. |
| bat mitzvah |
a Jewish ceremony that celebrates a girl becoming an adult and the beginning of her religious duties. The bat mitzvah usually takes place when the girl is thirteen years old. |
| blush |
the act of becoming red in the face from shame or embarrassment. [1/3 definitions] |
| changing |
becoming different; shifting; varying. |
| crystal |
a piece of a certain substance that is made when the substance changes from a liquid to a solid. In becoming solid, as when water turns to ice, this type of substance takes on a structure that has a repeating pattern of flat surfaces. These flat surfaces reflect light and can make the substance sparkle when looked at from different directions. [1/5 definitions] |
| decrease |
the act of becoming less or smaller. [1/4 definitions] |
| endangered |
in danger of becoming extinct. When a type of animal is endangered, it means that few of these animals exist now, and it is possible that there will be no more of these animals in the future. [2 definitions] |
| endangered species |
a species of plant or animal that is in danger of becoming extinct. |
| enrollment |
the act or process of becoming a member. [1/2 definitions] |
| extinction |
the act or process of becoming or making extinct. |
| growing |
increasing or becoming larger. |
| keep one's shirt on |
(informal) to stop oneself from becoming angry or losing patience; hold one's temper. |
| nationality |
the condition of belonging to a particular nation by having been born there or by becoming a citizen. [1/2 definitions] |
| patient |
able to wait without complaining or becoming upset. [1/3 definitions] |
| rhinoceros |
a large mammal with hooves and very thick skin. Rhinoceroses have one or two horns on their noses. They eat plants. Wild rhinoceroses live in Africa and southern Asia. Four of the five kinds of rhinoceroses are in danger of becoming extinct. |
| weary |
becoming impatient, bored, or unhappy with a particular thing (often followed by "of"). [1/4 definitions] |
| zebra |
a large mammal with a striped coat, long legs, and hooves. Zebras are closely related to horses but have shorter manes. They live in large herds in Africa. Several kinds of zebras are in danger of becoming extinct. |