Extension

/ɪkˈstɛnʃən/ · noun

Meaning

The act of extending; a stretching out; enlargement in length, breadth, or time; an increase..

Definitions by Sense

1. The act of extending; a stretching out; enlargement in length, breadth, or time; an increase.
2. The state of being extended.
3. That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension").
4. (mathematics, group theory, of a group G by a group H) A short exact sequence 1→H→E→G→1, or the group E therein.
5. (mathematics, homological algebra, of an object A by an object B in an abelian category) A short exact sequence 0→B→E→A→0, or the object E therein.
6. A part of a building that has been added onto the original.
7. An outgrowth; a part of something that extends its capabilities.
8. (semantics) Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension.

Example Sentences

Next month the house is undergoing an extension.

Due to the unforeseen circumstances, you are allowed an extension of two weeks to complete the task.

"Keep off Conductor Rails" said red-painted notices at the platform ends, for third-rails were laid in many places even where electric trains never normally ran, and there had been many rumours of impending electrification of the Wirral, as a natural extension of the Mersey system, a quarter of a century before the change was actually made.

For station is properly no rest, but one kind of motion, relating unto that which physicians (from Galen) do name extensive or tonical; that is, an extension of the muscles and organs of motion, maintaining the body at length, or in its proper figure.

Parents who treat their children as an extension of themselves

My research is an extension of the work of my mentor.

In smaller communities, the public schools are virtual extensions of each town's chief religion — "educating" kids to all the prejudices of that belief.

Perversely, we love John Wick himself. That lethal, bereaved assassin is a good bad guy for our times, the natural extension of Tony Soprano, Walter White and all the other heroic antiheroes the culture has embraced.

Synonyms for extension

Antonyms for extension

Related Words

Word Forms

• extensions

Usage Notes

Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.

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