(obsolete) Outreaching; expansive; extended, superficially or otherwise.

(uncountable) The condition of being extensive / (countable) The extent to which something is extensive

(uncountable) The state of being extensive or of having extension / (countable) The degree to which something is extensive

The quality of being extensible.

plural of extensibility

plural of extense

plural of extensity

plural of extensivity

In an extensible manner

A short series of text characters at the end of a computer filename, used to indicate the type of contents and the software that will be required to operate or open it.