[1] : The Collaborative International Dictionary of English v.0.48

phone \phone\, n. colloq. for telephone.
   1. an instrument that converts sound into signals that can be
      transmitted over distances and then converts received
      signals back into sounds; a telephone; as, i talked to him
      on the phone.

   syn: telephone, telephone set.
        wordnet 1.5

   2. phonetics an individual sound unit of speech without
      concern as to whether or not it is a phoneme of some
      language. a speech sound.

   syn: speech sound, sound.
        wordnet 1.5

   3. a device for converting electric signals into sounds; it
      is held over or inserted into the ear.

   syn: earearpiece, headphone, phone.
        wordnet 1.5
see also:
telephone 

[2] : The Collaborative International Dictionary of English v.0.48

phone \phone\, v. t.
   to get or try to get into communication with, using a
   telephone; as, i phoned him this morning.

   syn: call, telephone, call up, ring.
        pjc

              e. t. phone home.                   --e. t. the
                                                  movie
        pjc

[3] : WordNet (r) 2.0

phone
     n 1: electronic equipment that converts sound into electrical
          signals that can be transmitted over distances and then
          converts received signals back into sounds; "i talked to
          him on the telephone" syn: telephone, telephone set
     2: phonetics an individual sound unit of speech without
        concern as to whether or not it is a phoneme of some
        language syn: speech sound, sound
     3: electro-acoustic transducer for converting electric signals
        into sounds; it is held over or inserted into the ear; "it
        was not the typing but the earphones that she disliked"
        syn: earphone, earpiece, headphone
     v : get or try to get into communication with someone by
         telephone; "i tried to call you all night"; "take two
         aspirin and call me in the morning" syn: call, telephone,
          call up, ring
see also:
telephone telephone set speech sound sound earphone earpiece 
headphone call call up ring 

[4] : Moby Thesaurus II by Grady Ward, 1.0

118 moby thesaurus words for "phone":
   allophone, alveolar, amplitude, apico-alveolar, apico-dental,
   articulation, aspiration, assimilation, auditory effect,
   auditory phenomenon, bilabial, buzz, cacuminal, call, call box,
   call up, cerebral, check, coin telephone, consonant, continuant,
   dental, desk telephone, dial, dial telephone, diphthong,
   dissimilation, earphone, epenthetic vowel, explosive, extension,
   give a ring, glide, glottal, glottalization, guttural, hang up,
   headphone, hold the phone, hydrophone, idiophone, labial,
   labialization, labiodental, labiovelar, laryngeal, lateral,
   lingual, liquid, listen in, loudness, make a call,
   manner of articulation, microphone, modification, monophthong,
   morphophoneme, mouthpiece, mute, nasal, noise, occlusive,
   optophone, palatal, parasitic vowel, pay station, peak, pharyngeal,
   pharyngealization, phoneme, plosive, prothetic vowel,
   public telephone, push-button telephone, radiophone,
   radiotelephone, receiver, retroflex, ring, ring off, ring up,
   segmental phoneme, semivowel, sonance, sonant, sonority, sound,
   sound intensity level, sound propagation, sound wave, speech sound,
   stop, surd, syllabic nucleus, syllabic peak, syllable, telephone,
   telephone booth, telephone engineering, telephone extension,
   telephone mechanics, telephone receiver, telephonics, telephony,
   transition sound, transmitter, triphthong, ultrasound, velar,
   vocable, vocalic, vocoid, voice, voiced sound, voiceless sound,
   voicing, vowel, wall telephone

Phone >> P Words
Phone, definition of term: Phone
phone_pag1.html

Phone Mail >> P Words
Phone Mail, definition of term: Phone Mail
phone+mail_pag1.html

Phone Number >> P Words
Phone Number, definition of term: Phone Number
phone+number_pag1.html

Phone Jack >> P Words
Phone Jack, definition of term: Phone Jack
phone+jack_pag1.html

Phone Book >> P Words
Phone Book, definition of term: Phone Book
phone+book_pag1.html

Phone Call >> P Words
Phone Call, definition of term: Phone Call
phone+call_pag1.html

Phone Bill >> P Words
Phone Bill, definition of term: Phone Bill
phone+bill_pag1.html

Cellular Phone >> C Words
Cellular Phone, definition of term: Cellular Phone
cellular+phone_pag1.html