Definition

Noun: An additional telephone set that is connected to the same primary telephone line, allowing multiple handsets to share a single phone number and line. It is often used within a home or office to provide convenient access to the telephone from different rooms.

Usage

A "telephone extension" refers to the physical extra phone or the internal line itself. It is typically used to avoid the need to have multiple separate phone lines. - Example: "Please pick up the telephone extension in the kitchen." - Example: "Our office has a telephone extension in every department."

Examples

• Noun:
  • I'll answer the call on the telephone extension in my study.
  • The receptionist transferred the call to my telephone extension.
  • We need to install another telephone extension for the new conference room.

Advanced Usage

• "to have an extension": This is a common shortened form in office contexts, where "extension" implicitly means "telephone extension number."
  • My telephone extension is 407. You can dial it directly.
• "extension phone": A synonymous phrase for the physical device.
  • The cordless handset serves as an extension phone for the main base.

Variants and Related Words

• Extension (n): In many contexts, especially business, this is a shortened form of "telephone extension."
  • Dial extension 222 to reach the finance department.
• Internal line (n): A term sometimes used within organizations to describe the same concept.
• Satellite phone (n): In a home/office phone system, this can refer to a secondary handset, though it is not a standard term for "telephone extension."

Synonyms

• Extension line: Another term for the additional connection.
• Additional handset: Refers specifically to the physical telephone device.

Related Phrases

• To put someone through to an extension: To connect a caller to a specific internal line.
  • Let me put you through to his telephone extension.
• To dial an extension: To enter the short internal number to reach a specific phone.
  • After the main number, dial the four-digit telephone extension.

Noun

1. an additional telephone set that is connected to the same telephone line