Someone is alone if they are all by themselves, with no-one else around them. Sometimes alone is just a feeling - you may have people or things around you but you feel alone, and this can make you very sad.
Scientific name: sulfur (sulphur)
A cellphone is another name for a mobile telephone, a small phone that doesn't need to be plugged into a fixed telephone line and can be carried virtually anywhere.
Cis forCobblestones
Cobblestones are stones that were used to pave streets before concrete and asphalt were invented. They were typically smooth stones found in a riverbed. Because the stones could be all different sizes and were placed so they fit together without gaps, they have given rise to the phrase "cobbled together".
A cone is a shape with a round bottom that gets smaller as it goes until it reaches a point. If you cut a slice through a cone parallel to the bottom, it will be the same shape as the bottom. If you cut a slice through the cone vertically going through the top point, you will get a triangle.
Many things are cone shaped. volcanos tend to be cone-shaped, pinecones and pine trees like the ones in the picture are cone-shaped, and of course traffic cones are cone shaped.
A cyclone is a very large weather event, which has low pressure at the center with winds that go around the center point. Cyclones turn anticlockwise in the northern hemisphere and clockwise in the southern.
Dis forDrone (aircraft)
A drone is a small aircraft that flies without a pilot inside it. It is controlled remotely by a person on the ground or programmed to fly automatically.
The word drone began to be used for pilotless aircraft in the early 1900s. The name was inspired by male bees, also called drones, which do not gather food and were used as a metaphor for machines that operate without a human inside.
