extension

Meanings

1. 1
   noun

   An extra part added to something to make it bigger or longer.

   They are building an extension on the back of the house to add another bedroom.

2. 2
   noun

   Extra time allowed before something must be finished or paid.

   She asked her teacher for an extension on the essay deadline.

3. 3
   noun

   The act of making something larger, longer, or wider.

   The extension of the railway line will connect two more towns.

4. 4
   noun

   Something seen as a natural continuation or part of something else.

   Many parents treat their children as an extension of themselves.

5. 5
   noun

   The letters after the dot in a file name that show its type.

   Files with the .txt extension usually contain plain text.

From Middle English extensioun, from Old French estension, from Latin extensiō, extensiōnem.

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