"monthly" in the noun sense
1. monthly
a periodical that is published every month (or 12 issues per year)
"monthly" in the adjective sense
1. monthly
of or occurring or payable every month
"monthly payments"
"the monthly newsletter"
"monthly" in the adverb sense
1. monthly
occurring once a month
"they meet monthly"
Source: WordNet® (An amazing lexical database of English)
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