Topic: TELEPHONE, TELEGRAPH
| Date: | 1800-1900 |
| Origin: | tele- + Greek phone 'sound, voice' |
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tel‧e‧phone1 S1 W2

1 the system of communication that you use to have a conversation with someone in another place [= phone]
the telephone
TCT2 [countable]TCT the piece of equipment that you use when you are talking to someone by telephone [= phone]:
3
be on the telephone
a) TCT to be talking to someone, using the telephone :
I was on the telephone when he came in.
I was on the telephone when he came in.b) TCT to have a telephone in your home, office etc
➔ see usage note call1
