swear in swear • swear off · · · Info · Definitions · Characters · · swear in · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (verb) administer on oath to. Synonyms: swear in. Example: "The speaker of the house swore in the new president." · · Verb Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 w latin small letter w U+0077