| age |
to show the signs of old age. [1/8 definitions] |
| aged |
having or being the age of. [1/3 definitions] |
| ageism |
the act of having a bad opinion of, or not treating in a fair way, a person or group of people based on age. This kind of discrimination is often against older people. |
| census |
an official count of the people who live in a country or other area. A census is also used to collect information about these people, such as their job, age, or sex. |
| gnarled |
having a rough and worn appearance because of age or hard work. [1/2 definitions] |
| grade |
a division made by age to group school children for instruction, or the children who belong to such a division. [1/7 definitions] |
| infirm |
weak or ill, as from old age. |
| majority |
the age at which a person becomes an adult according to the law. [1/3 definitions] |
| mammoth |
a very large extinct mammal closely related to elephants. Mammoths were much bigger than elephants, and had shaggy black fur and long tusks that curved upward. Several kinds of mammoths lived in the Northern Hemisphere until the end of the last Ice Age. [1/2 definitions] |
| mastodon |
a very large extinct mammal. Several kinds of mastodons lived in Africa, Europe, Asia, and North America tens of thousands of years ago. The last kind of mastodon became extinct at the end of the last Ice Age. Mammoths and modern elephants may have developed from earlier mastodons. |
| mellow |
having the knowledge and sympathy that often comes with experience and age; being without anger. [1/5 definitions] |
| middle age |
the period of human life between youth and old age, or the years between forty and sixty-five. |
| middle-aged |
of a person, being of an age between youth and old age. A middle-aged person is often between forty and sixty-five years of age. |
| minor |
under the age of an adult as recognized by law. [2/3 definitions] |
| old |
worn by use or age. [1/5 definitions] |
| peer1 |
a person of the same rank, age group, or ability as another person; equal. [1/2 definitions] |
| preschool |
a school for children who are under the age for kindergarten. In the U.S. and Canada, children usually start kindergarten around five years old. |
| rickety |
weak in the joints with age; tottering. [1/2 definitions] |
| senior citizen |
an older person, especially one who is past the age of sixty-five and retired. |
| Stone Age |
the stage of human culture when stone tools and weapons were made and used. The Stone Age dates from about two million B.C. to about 3,500 B.C. |
| teen |
short form of "teenager," a person who is of age thirteen through nineteen. [2 definitions] |