quick and easy use

"Besides the convenience factor, which is major, they have also improved our communication skills."

being productive and yielding results (able to produce results)

"In business, they have increased communication and productivity."

satisfactory or okay

"in the cell-phone culture, it is perfectly acceptable to take a phone call in the middle of a conversation."

break into or interrupt

"The ring tones of cell phones, which in and of themselves can be rude, punctuate every meeting, get-together, function, festival and social gathering."

significant fact or event

"In fact, they can hardly be blamed for this phenomenon because they don't know better."

incontestable, clearly true

"It is an undeniable, indisputable fact that no one drives as well or better with a cell phone lodged to his ear."

not disputable, unquestionable

"It is an undeniable, indisputable fact that no one drives as well or better with a cell phone lodged to his ear."

forbids or prevents something from happening

"The law prohibits the use of hand-held mobile phones while driving in the state."

an instrument of punishment, whip, the worst punishment which may or may not be deserved

"My ex-brother-in-law lives in remote northwest Montana and believes they are the scourge of our time."

treat something as forgivable, acceptable, or harmless; allow

"By your silence you will condone their actions."