| solar system |
our Sun, its eight planets and their moons, and all other bodies that travel around the Sun, or any system that includes a star and all of the matter which orbits that star, including planets and moons. |
| sold |
past tense and past participle of "sell." |
| solder |
any mixture of metals that is melted and used to connect pieces of metal. [2 definitions] |
| soldier |
a person who serves in the army and who is not an officer. |
| sole1 |
single and alone; not one among others; only. [2 definitions] |
| sole2 |
the bottom of something that comes in contact with the ground. Feet and shoes have soles. [2 definitions] |
| sole3 |
any flatfish from the ocean that is used for food. |
| solely |
without any others; alone. [2 definitions] |
| solemn |
serious in appearance, sound, or mood. [2 definitions] |
| solid |
having a firm shape or form that can be measured in length, width, and height; not like a liquid or a gas. [8 definitions] |
| solitaire |
any of various card games played by one person alone. [2 definitions] |
| solitary |
being, traveling, or living without others; alone. [3 definitions] |
| solitude |
the condition of living or being by oneself. |
| solo |
a performance by one person. [5 definitions] |
| Solomon Islands |
an island country in the southwestern part of the Pacific Ocean. It lies to the east of New Guinea. The capital of Solomon Islands is Honiara. |
| solstice |
either of the two times in the year when the sun is furthest from the celestial equator, occurring in June and December. |
| solution |
the act or process of solving a problem or question. [4 definitions] |
| solve |
to find or figure out an answer to. |
| Somalia |
an East African country on the Indian Ocean, bordering on Ethiopia and Kenya. The capital of Somalia is Mogadishu. |
| somber |
of a dark shade or condition. [2 definitions] |
| sombrero |
a straw or felt hat that has a wide brim and high crown. Sombreros are worn in Mexico. |