Abstract words refer to concepts or ideas-things you cannot see, hear, taste, touch, or smell.
Do you mean "amnesia" where you don't remember who you are or recent events which happened to you? Or do you mean "sensory deprivation" when you cannot see, hear, smell, taste anything?
See hear touch
0 dB is the threshold of hearing. Some people can hear a very soft sound and some cannot hear anything.
Hallucinogens
There are stories of people who are in coma's that can still hear. These people try to communicate with their loved ones and doctors but cannot.
Wind.
True. Worms do not have eyes or ears, so they cannot see or hear in the way that humans or other animals can. They rely on other senses, such as touch and vibrations, to navigate their environment.
Since dogs can hear high pitched sounds humans cannot hear, it is more likely a dog becomes frightened or upset from something the dog hears that you cannot hear.
People who cannot hear (Deaf) or cannot or do not speak, and also for the people who wish to communicate with people who primarily use sign.
It is rays of light
You see the lightening, and hear the thunder.
Because there's no air ! They have to communicate by radio.
Answer : Emotion
You cannot see audio. You hear it.
there no way a humanbeing cannot communicate there no way a humanbeing cannot communicate there no way a humanbeing cannot communicate
Communications impaired