| sign |
A sign is something with words or pictures that people put up somewhere so that other people can read it or look at it. A sign gives people some information or a warning. Sometimes signs are used for advertising things too. [4 definitions] |
| signal |
A signal is a movement or a thing that gives directions, a warning, or other information. |
| signature |
A signature is a special way that a person writes his or her name. A signature is a person's special mark. You often see a signature at the bottom of a painting or at the end of a letter. The signature shows who made the painting or wrote the letter. Sometimes it's hard to read people's signatures. The letters are not always clear. |
| silence |
When there is silence, it means that there is no sound. It is quiet. |
| silent |
When something is silent, it makes no sound. |
| silk |
Silk is a soft, shiny fiber made by certain insects, especially by an insect called a silkworm. |
| silly |
When something is silly, it does not make sense. [2 definitions] |
| silver |
Silver is a shiny, white metal. Silver is sometimes used to make jewelry, coins, forks, and spoons. [3 definitions] |
| similar |
When things are similar to each other, they are like each other in some way. |
| simple |
When something is simple, it is easy to do or understand. [2 definitions] |
| since |
If you have been playing at your friend's house since one o'clock, one o'clock is the time that you started playing there. If you haven't eaten since seven o'clock, it means that you have not eaten in all the time after seven o'clock. [3 definitions] |
| sing |
When you sing, you make sounds with your voice that are like music. |
| Singapore |
Singapore is an island country in Asia. It is very near the country of Malaysia. Singapore has many islands, but the main part of Singapore is a very large, modern city on one island. There are many tall buildings there and many businesses. |
| singer |
A singer is a person who sings. Often, a singer is someone who has a job of singing. |
| single |
When there is only one of something, we call it a single thing. [3 definitions] |
| singular |
The word "book" is singular. The word "books" is not singular. When we say "book," we are talking about only one book. People understand this because there is no "s" at the end of the word. When we are talking about only one thing of a certain kind, we use a singular word. |
| sink |
A sink is a large bowl that is connected to pipes so that water can come in and go out of it. Sinks are often found in bathrooms and kitchens. [2 definitions] |
| sip |
When you sip a drink, you drink it slowly and a little at a time. [2 definitions] |
| siren |
A siren is something that makes a loud noise and is used by vehicles like police cars and fire trucks. |
| sister |
Your sister is a girl or woman who has the same mother or father as you. |
| sit |
When you sit, you rest the lower part of your body on a chair or something else. [3 definitions] |