Definitions:

1. a mutually agreed delay in the date set for the completion of a job or payment of a debt noun
   • they applied for an extension of the loan
2. amount or degree or range to which something extends noun
   • the wire has an extension of 50 feet
3. the ability to raise the working leg high in the air noun
   • The dancers were praised for their uncanny extension.

Synonyms:

• annex
• annexe
• denotation
• elongation
• extension phone
• extension service
• filename extension
• lengthiness
• prolongation
• propagation
• reference
• telephone extension
• university extension
• wing

NearBy Words:

• extensional