adjective: Abbreviation of inferior. [Of low rank, standard or quality.]
adjective: (lexicography) Abbreviation of informal. [Not formal or ceremonious.]
noun: (grammar) Abbreviation of infinitive. [(grammar) The infinitive mood or mode (a grammatical mood).]
noun: (military) Abbreviation of infantry. [Soldiers who fight on foot (on land), as opposed to cavalry and other mounted units, regardless of external transport (e.g. airborne).]
