<p><strong>Adjective</strong></p><ul><li>pertaining to a month, or to each month.</li><li>done, happening, appearing, etc., once a month: a monthly magazine.</li><li>computed or determined by the month: a monthly salary.</li><li>continuing or lasting for a month.</li></ul><p><strong>Noun</strong></p><ul><li>a periodical published once a month.</li><li>Sometimes monthlies.</li><li>Informal: a menstrual period.</li></ul><p><strong>Adverb</strong></p><ul><li>once a month; by the month.</li></ul>