(linguistics) The study of the physical sounds of human speech, concerned with the physical properties of speech sounds (phones), and the processes of their physiological production, auditory reception, and neurophysiological perception, and their representation by written symbols.

The art and technology of producing images on photosensitive surfaces, and its digital counterpart. / The occupation of taking (and often printing) photographs.

An indivisible unit of sound in a given language. A phoneme is an abstraction of the physical speech sounds (phones) and may encompass several different phones.

(chemistry) a chemical element (symbol P) with an atomic number of 15, that exists in several allotropic forms. / (obsolete) any substance exhibiting phosphorescence; a phosphor

A device for transmitting conversations and other sounds in real time across distances, now often a small portable unit also capable of running software etc.

(transitive) To call (someone) using a telephone.

(phonetics) A speech segment that possesses distinct physical or perceptual properties, considered as a physical event without regard to its place in the phonology of a language.

A picture created by projecting an image onto a photosensitive surface such as a chemically treated plate or film, CCD receptor, etc.

(transitive, intransitive) To take a photograph (of). / (transitive, figuratively) To fix permanently in the memory etc. / (intransitive) To appear in a photograph.

A mobile phone using cellular technology. / (informal) A mobile phone using any technology (such as PCS).