#1 extension n. a mutually agreed delay in the date set for the completion of a job or payment of a debt; "they applied for an extension of the loan". wn
#2 extension n. act of expanding in scope; making more widely available; "extension of the program to all in need". wn
#3 extension n. [propagation] the spreading of something (a belief or practice) into new regions. wn
#4 extension n. [extension service, university extension] an educational opportunity provided by colleges and universities to people who are not enrolled as regular students. wn
#5 extension n. act of stretching or straightening out a flexed limb. wn
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