Car phone and Cellular telephone

Cellular telephone and car phone are semantically related. In some cases you can use "Cellular telephone" instead a noun phrase "Car phone".

Cellular telephone noun - A hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver.

Car phone and cellular telephone are semantically related. You can use "Car phone" instead a noun phrase "Cellular telephone".