| air mattress |
a mattress filled with air, used esp. for camping, mobile living, or as an extra bed for visitors. |
| appanage |
an extra property or privilege offered to or claimed by someone as his or her due. [1/2 definitions] |
| append |
to add, esp. as something extra at the end of a text. [1/2 definitions] |
| auction bridge |
a version of bridge in which players bid for the right to specify which suit will be trump, any extra tricks won beyond the contract being scored toward a game. |
| backup |
acting as a reserve; extra. [1/4 definitions] |
| bonus |
an extra portion or item given free, usu. as an incentive to buy something. [1/3 definitions] |
| chaparejos |
seatless leather trousers worn by cowboys over their regular pants, for extra protection; chaps. |
| conversion |
in football, a one-point kick or a two-point play scored following a touchdown; extra point; point after touchdown. [1/6 definitions] |
| excess |
more than required, expected, or considered reasonable; extra; additional. [1/5 definitions] |
| fanjet |
a jet engine that uses an impeller fan to draw in more air than is needed for fuel combustion, the excess being mixed with the products of the combustion to form an exhaust jet that provides extra thrust; turbofan. [1/2 definitions] |
| for good measure |
as an additional thing; as an extra. |
| grace period |
extra time allowed after a specified date or term has passed, during which an obligation, such as the repayment of a debt or the return of something borrowed, may be fulfilled without penalty. |
| gratuity |
extra money given voluntarily for services rendered; tip. |
| inconvenience |
to cause trouble or extra effort for. [1/3 definitions] |
| inconvenient |
causing extra effort or time. [1/3 definitions] |
| intercalate |
to insert (an extra day or month) in the calendar. [1/2 definitions] |
| Klinefelter's syndrome |
a congenital disorder that causes sterility in males, caused by an extra X chromosome. |
| lagniappe |
an extra gift, bonus, or tip. |
| lay day |
any of several days allowed for loading or unloading a ship without extra charge. |
| lean2 |
of humans and animals, having little extra fat on the body. [1/5 definitions] |
| leap year |
a year in the Gregorian calendar having 366 days which occurs every four years, the extra day, February 29, making up the quarter day difference between the common year and the astronomical year. [2 definitions] |