Yes
That is the correct spelling for "wi-fi" which means wireless fidelity, a radio signal network data transfer.
The correct spelling is "radar." (acronym from RAdio Detection And Ranging)
The correct spelling is "commercial" (used for business, or a TV/radio advertisement).
The technical term 'wireless telegraphy' has two distinct senses:1: Where 'wireless' is an adjective qualifying the word 'telegraphy', meaning the kind of telegraphy that uses transmission by radio signals instead of over wires;2: Where 'wireless telegraphy' is a noun phrase, meaning the use of radio signals to send telegraphic messages, usually by Morse code.
The word for a TV or radio ad is "commercial" (also the adjective form of commerce).
Wireless internet radio has many advantages over regular radio. Wireless internet allows access to a larger number of channels and is generally available in more areas.
radio
no
Radio
Radio
Wireless
Physical Media Twisted-Pair Cable Coaxial Cable Fiber-Optic Cable Wireless Media Broadcast Radio Cellular Radio Microwaves Communication Satellite