| sightless |
not able to see; blind. |
| sightseeing |
the act or hobby of visiting and seeing interesting places; touring. [2 definitions] |
| sign |
something that shows or demonstrates a fact, event, or quality; indication. [7 definitions] |
| signal |
a movement, action, or device used to communicate instructions, warning, or other information. [7 definitions] |
| signature |
a person's written name, used to sign documents, letters, or checks. [2 definitions] |
| significance |
great value; importance. [2 definitions] |
| significant |
being or causing something of importance. [2 definitions] |
| sign up |
to join or cause to join a particular group, class, or activity; register. |
| silence |
a lack of sound; quiet. [3 definitions] |
| silent |
making no sound. [5 definitions] |
| silhouette |
an outline or side view of a person's head that is filled with a dark, solid color. [3 definitions] |
| silicon |
a hard, dark gray substance that is a chemical element. It is found in silica, a compound that makes up one fourth of the earth's crust. Silicon is used in making glass, concrete, bricks, and computer chips. (symbol: Si) |
| silk |
a fine, soft, shiny fiber produced by certain insects. [4 definitions] |
| silkworm |
a caterpillar of a moth, originally from Asia. The caterpillar makes silk thread that it uses to spin its cocoon. People use the cocoons to make silk cloth. |
| silky |
of or like silk; smooth, delicate, or shiny. |
| sill |
a horizontal strip or block serving as the bottom of a window or door frame. |
| silly |
without good sense; foolish. [2 definitions] |
| silo |
a tall building that is used to store food for farm animals. Silos are often shaped like cylinders. [2 definitions] |
| silt |
fine particles of earth, clay, or sand that eventually settle out of water. |
| silver |
a shiny white metal that is soft and easy to shape. Silver is one of the chemical elements. It is used in making jewelry, coins, and table utensils. (symbol: Ag) [7 definitions] |
| silversmith |
a person who makes, plates, or fixes objects made of silver. |