1. The act of interpolating a word or passage; a spurious word or passage inserted; a method employed for filling up the intermediate terms of a series of numbers or observations by numbers which follow the same law.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• interptation,
• interpetation,
• interelation,
• interputation,
• interpatation,
• interprtation,
• interpitation,
• interpration,
• interpoltions,
• interpreation,
• interpation,
• interpriation,
• interpiration,
• interperation,
• inturpulation,
• interpelation,
• interpilation,
• interpollation,
• intepolation,
• interploation

• internal angle,
• intermediation,
• interpretative,
• intercalation,
• interpellation,
• interrelate,
• interposition,
• interpretation,
• internalisation,
• interpenetration,
• interstratify,
• interdiction,
• internalization,
• interception,
• interpellate,
• interrogate,
• interactional,
• interstate,
• interrogator,
• internationality,
• interleave,
• interpolate,
• intersection,
• internationalise,
• intercalate,
• interrogation,
• internationalist,
• interscholastic,
• interpreting,
• interpreted,
• inter alia,
• interpreter,
• interrelation,
• internationale,
• interoception,
• interphone,
• internationalize,
• internationally,
• interaction,
• intermural,
• interrogatory,
• intermission,
• intergalactic,
• interjection,
• interplanetary,
• internationalism,
• international,
• intervention,
• intercession,
• interruption,
• interceptor,
• interferon,
• interpersonal.

The adverb form of the word "interpolation" is "interpolatively".

The adjective form of the word "interpolation" is "interpolative".

The plural of the "interpolation" can be the "interpolations".

The singular of the "interpolation" can be the "interpolation".