noun (n)

• a message (spoken or written) that is introduced or inserted

  pesan (ditulis atau diucapkan) itu diperkenalkan atau dimasukkan

  Example:
  With the help of his friend's interpolations his story was eventually told.
  

  Synonym:
  insertion
  

  source: wordnet30
• (mathematics) calculation of the value of a function between the values already known

  (matematika) pengiraan dari nilai sebuah fungsi antara nilai yang sudah dikenal

  source: wordnet30
• the action of interjecting or interposing an action or remark that interrupts

  tindakan interjecting atau interposing aksi atau teguran itu mengganggu

  Synonym:
  interjection, interpellation, interposition
  

  source: wordnet30
• The act of introducing or inserting anything, especially that which is spurious or foreign.

  tindakan memperkenalkan atau memasukkan sesuatu, terutama yang palsu atau asing.

  source: webster1913