Adolescence /ˌæd

vision /ˈvɪʒ. ə n/ noun MENTAL IMAGE
1. [ C ] an idea or mental image of something
We see in his novels his sinister, almost apocalyptic, vision of the future.
Johnny was late home and, as usual, I had visions of him lying dead in some alley.
2. [ C ] an experience in which you see things which do not exist physically, when your mind is affected powerfully by something such as deep religious thought or drugs or mental illness
She had visions in which the angel Gabriel appeared to her.
wireless /ˈwaɪə.ləs/ /ˈwaɪr-/ adjective
without a cable a wireless connection
compact /kəmˈpækt/ adjective
consisting of parts that are positioned together closely or in a tidy way, using very little space
compact soil/sand a compact camera/bag
What a compact office! How did you fit so much into so little space?