electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds
get or try to get into communication (with someone) by telephone
a formation of people or things one beside another
a mark that is long relative to its width
a formation of people or things one behind another
a length (straight or curved) without breadth or thickness; the trace of a moving point
text consisting of a row of words written across a page or computer screen
a fortified position (especially one marking the most forward position of troops)
a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning
a single frequency (or very narrow band) of radiation in a spectrum
