Telephone
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Technological Noun
Used to describe both the physical device and its function in enabling communication. Have you seen my telephone? I can't find it anywhere.
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Singular or Plural
Can be used as a singular noun for one device or in plural form when referring to multiple devices. All the telephones in the office were ringing at once.
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Culturally Ubiquitous
Once a symbol of advancement, now represents an essential part of everyday life. Even my grandmother relies on her telephone to keep in touch.