monthly

nouns

a periodical that is published every month (or 12 issues per year)
is a type of (narrower)
a periodical that appears at scheduled times

adjectives

of or occurring or payable every month
"monthly payments"; "the monthly newsletter"
is derived from
is derived from
is similar to
happening or recurring at regular intervals
"the periodic appearance of the seventeen-year locust"

adverbs

occurring once a month
"they meet monthly"