| bend over backwards |
to try very hard; make a great effort. |
| beryllium |
a hard, light, gray substance that is one of the chemical elements. Beryllium is sometimes combined with other elements to form an alloy. It is also used in building rockets. (symbol: Be) |
| bill2 |
the hard outer part of a bird's mouth that sticks out from its face. A bill is made up of a lower part and an upper part; beak. |
| billiards |
a game played with long sticks and hard balls on a special table covered with cloth. Players use a stick to hit the balls against each other and into pockets along the edges of the table. |
| birch |
a tree or shrub with hard wood and smooth bark that can be peeled off. |
| bird |
an animal with two wings, two feet, and a body covered with feathers. Most birds can fly. Birds are warm-blooded animals with skeletons inside their bodies. Birds lay eggs with hard shells. Robins, eagles, chickens, and ostriches are a few of the many kinds of birds. |
| blackboard |
a smooth, hard panel for writing on with chalk; chalkboard. Blackboards are often made of slate and have a dark color. |
| block |
a solid piece of hard material, such as wood or concrete, with flat sides. [1/9 definitions] |
| blow1 |
a quick, hard hit by the fist or by a hard object. [1/2 definitions] |
| bone |
the hard tissue that forms the skeleton of a person or animal. [1/2 definitions] |
| bonus |
a payment added to a person's regular pay as a reward for hard work. |
| breathless |
breathing hard following a lot of exercise or physical effort. [1/2 definitions] |
| brick |
a hard block of dried or baked clay used as a building material. [1/2 definitions] |
| cake |
a hard, shaped mass of some substance. [2/4 definitions] |
| callous |
not having kindness; not sensitive; having a hard heart. [2 definitions] |
| cane |
the long, hard stem of the bamboo plant and other large grass plants. [1/3 definitions] |
| cantaloupe |
a round melon with a hard, rough skin and orange flesh. |
| carob |
a tree of the Mediterranean that has long, flat pods with a sweet pulp and hard seeds. [1/2 definitions] |
| cast |
to form into a hard object by pouring or setting material into a mold. [2/12 definitions] |
| cast iron |
a mixture of iron and carbon, with other materials added to make it either hard and brittle or soft and strong. |
| cement |
a powder made of clay and limestone that becomes hard when water is added. Cement is used as a building material. [2/3 definitions] |