Word.ws English Dictionary

expando

expando noun: a property added to an object at run-time.

Noun

expando (plural expandos)

  1. A property added to an object at run-time.
    • Because JavaScript objects are not constrained to predefined interfaces as they are with .NET objects, you can set expando properties on any object.2009, Ted Pattison, Daniel Larson, Inside Microsoft Windows Sharepoint Services 3.0
    • I talk more about expandos in Chapter 10. This means that you can arbitrarily add new properties to an object whenever you want.2010, Alexei White, JavaScript Programmer's Reference

Forms of expando

pluralexpandos

Origin of expando

Perhaps a short form of expandable object.

Words that rhyme with expando

Questions about expando

What does expando mean?
Expando means a property added to an object at run-time.
What part of speech is expando?
Expando is a noun.
What is the plural of expando?
The plural of expando is expandos.

Words near expando in the dictionary

  1. expanding
  2. expanding bullet
  3. expanding one's wings
  4. expandingly
  5. expandingness
  6. expando
  7. expandor
  8. expandors
  9. expandos
  10. expands
  11. expands one's wings

Source and license

Adapted from Wiktionary: expando (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-uk-expando.ogg.

Cite this entry: “expando.” Word.ws, https://word.ws/expando. Based on Wiktionary, CC BY-SA 4.0.