i Register
In some senses, cellphone is marked as informal. Watch for register when choosing this word.
noun
Alternative form of cell phone.
Six years later, the Transportation Department advises drivers to avoid cellphones except in emergencies.
Nakasone added that the NSA does not purchase cellphone location data of Americans or location data generated by automotive infotainment systems in the United States.
verb
To make a call on a cellphone.
They stood on line, and slept and ate and cellphoned, all night and into the day.
That information — including estimates that cellphoning drivers caused 955 fatalities and 240,000 accidents in 2002 — was finally pried loose this week by a freedom of information lawsuit.