a large or important park of something

that can be reached, entered, used,seen, etc.

an action, an object or a system by which a result is achieved.

a systefor carrying people orgoods from one place to another using vehicles, roads, etc

to make aproduct or service available to the public for the first time

an arm or a leg

made to appear to exist by the use of computer software

a piece of equipment that artificially creates a particular set of conditions in order to train somebody to deal with a situation that they may experience in reality

a machine attached to somebody's body to enable them to perform movements and actions more easily

to change something into a different form

connected with the protection of the environment

a slope

the state of being crowded and full of traffic

a large number of things or people

not harmful to the environment

a large hole in the side of a hill or cliff or under the ground

a house, flat, etc. where a person lives

to make something known to somebody

to change something slightly, especially in order to make it more suitable for a particular purpose

a single sound of a particular length and pitch, made by the voice or a musical instrument

a period of time

a special type of image that appears to be three-dimensional especially one created using lasers

an effort to do something or to obtain something

a type of virus that can cause pneumonia and other diseases in humans and animals

to make light, an Image, etc. fall onto a flat surface or screen

a photo of yourself that you make, typically with a smartphone or webcam

a mixture of different types of the same thing

to send data to another computer

a mass of very small air bubbles on the surface of aliquid

to be upset, annoyed or worried by something