1. The act of interjecting; a word thrown in between others to express some emotion or passion.

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

• entersection,
• interection,
• intrection,
• intercection,
• internaction,
• interduction,
• interarction,
• interraction,
• interpection,
• insersection,
• instersection,
• interaaction,
• intesection,
• interseaction,
• inperfection,
• intereaction,
• intertaction,
• intersction,
• interction,
• intergestion

• intergalactic,
• intercalation,
• interchange,
• interestingness,
• indirection,
• interracial,
• interdict,
• interesting,
• interactive,
• interconnected,
• interspersion,
• internationally,
• interaction,
• intersect,
• interpreted,
• interference,
• interruption,
• intermission,
• interferon,
• internuncio,
• internecine,
• intercession,
• international,
• intersectant,
• interfere,
• interposition,
• interlocutory,
• interstice,
• interlacing,
• interconnection,
• interlocking,
• interdiction,
• interception,
• interoceptor,
• intercept,
• introject,
• interpreter,
• interject,
• intervention,
• intertidal,
• interactional,
• interrelation,
• interpret,
• interpolation,
• intermediation,
• introspection,
• interlocutor,
• interpretive,
• interestingly,
• intersection,
• intersecting,
• interpretation,
• interstitial,
• interreflection,
• interiorise,
• interiorize,
• introjection,
• interoception,
• interpellation,
• interpreting,
• internment,
• internationale,
• interfacial,
• interrogation,
• interconnect.

The plural of the "interjection" can be the "interjections".

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