A website is a presence on the World Wide Web. As of 2017, there are more than one billion. To qualify as a bona fide site, it must be available over the Internet around the clock.
Tube means a hollow cylinder. An example of a tube is manicotti pasta. The definition of a tube is a pliable container with a screw cap at one end to keep it closed. An example of tube is the container that toothpaste comes in.
1. a hollow cylinder of metal, wood, or other material, used for the conveyance of water, gas, steam, etc. 2. a tube of wood, clay, or other material, with a small bowl at one end, used for smoking tobacco, opium, etc. 3. a quantity, as of tobacco, filling the bowl of such a smoking utensil.