Word parts month + -ly Pronunciation IPA (key): /ˈmʌnθli/ Audio (US)(file) Adverb Positive monthly Comparative none Superlative none If something is monthly, then it happens or comes once in a month. This magazine is monthly. Noun Singular monthly Plural monthlies (countable) A monthly is a magazine that is published every month. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads