Reading Theme:
Extension: Definition, Usage & Key Examples (3 meaning)
Meaning 1：added part (extension)
extension
/ɪkˈstenʃn/
n.
an extra part added to a building to make it bigger.
added part
➕
/ˈæd.ɪd pɑːrt/
n.
A new section or structure physically attached to an existing building to increase its size or functionality.
📘 Details & Usage
📖 Root Explanation
From Latin 'extendere' (to stretch out), from 'ex-' (out) + 'tendere' (to stretch).
💡 Mnemonic
EXpanding the TENsion: think of stretching something out (like time or space) until it reaches further.
📖 Example
They built an extension at the back of their house to use as a new kitchen.
They built an extension at the back of their house to use as a new kitchen.
🔗 Collocations
build an extension – to construct an additional part to a building
house extension – an addition made to a residential house
kitchen extension – a new room or area added specifically for a kitchen
🔄 Synonyms
🚫 Antonyms
🌱 Derivatives
📖 Cultural Story
The word 'extension' comes from the Latin 'extensio', the action of stretching out. In the modern business world, requesting a 'project extension' is a common and formal part of project management and academic deadlines.
Meaning 2：extra time (extension)
extension
/ɪkˈstenʃn/
n.
more time allowed to finish something, like homework or a project.
extra time
➕
/ˈek.strə taɪm/
n.
A period of additional time granted beyond an original deadline for completing a task.
📘 Details & Usage
📖 Example
My professor granted me a two-day extension to submit my final essay.
My professor granted me a two-day extension to submit my final essay.
🔗 Collocations
grant an extension – to officially allow more time
request an extension – to ask for more time to complete something
deadline extension – a postponement of the final due date
🔄 Synonyms
postponement (n.) – the action of delaying an event or arrangement to a later time
delay (n.) – a period of time by which something is late or postponed
🚫 Antonyms
shortening (n.) – the action of making something shorter in duration
advancement (n.) – the action of moving an event to an earlier date
Meaning 3：phone line branch (extension)
extension
/ɪkˈstenʃn/
n.
an extra phone connected to the main phone line in a building, with its own number.
phone line branch
➕
/ˈfəʊn laɪn brɑːntʃ/
n.
A secondary telephone line connected to a main line within an organization, allowing direct internal calls.
📘 Details & Usage
📖 Example
Please dial extension 123 to reach me directly at my desk.
Please dial extension 123 to reach me directly at my desk.
🔗 Collocations
dial extension – to enter a short internal phone number
phone extension – an internal telephone line within a system
internal extension – a phone number used only within a company or building
🔄 Synonyms
line (n.) – a telephone connection
🚫 Antonyms
main line (n.) – the primary or central telephone number
Wordbook
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