'extension' in a sentence

: a mutually agreed delay in the date set for the completion of a job or payment of a debt

: act of expanding in scope; making more widely available

: the spreading of something (a belief or practice) into new regions

: an educational opportunity provided by colleges and universities to people who are not enrolled as regular students

: act of stretching or straightening out a flexed limb

: a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename

: the most direct or specific meaning of a word or expression; the class of objects that an expression refers to

: the ability to raise the working leg high in the air

: amount or degree or range to which something extends

: an additional telephone set that is connected to the same telephone line

: an addition to the length of something

: an addition that extends a main building