1. (n.) The act of interjecting or throwing between; also, that which is interjected.

2. (n.) A word or form of speech thrown in to express emotion or feeling, as O! Alas! Ha ha! Begone! etc. Compare Exclamation.

Parthian shot address adjectival adjective adverb adverbial adversative conjunction affirmation allegation answer apostrophe aside assertion attributive averment comment conjunction conjunctive adverb coordinating conjunction copulative copulative conjunction correlative conjunction crack cry declaration dictum disjunctive disjunctive conjunction ejaculation embedment encroachment entrance entrenchment episode exclamation exclamatory noun expression form class form word function class gerundive graft grafting greeting impaction impactment impingement implantation imposition incursion infiltration infix infixion influx infringement infusion injection inoculation inroad insert insertion insinuation intercalation interference interlineation interlocution interloping interpolation interposition interposure interruption intervention introduction intromission intrusion invasion irruption mention note obiter dictum observation obtrusion parenthesis part of speech participle particle past participle penetration perfect participle perfusion phrase position preposition present participle pronouncement question reflection remark say saying sentence side remark statement subjoinder subordinating conjunction tessellation thought tossing-in transplant transplantation trespass trespassing unlawful entry utterance verbal adjective word