noun, adverb
Refers to the current calendar month. Can be used as a noun or adverbially without a particle.
今月はとても忙しい。
I'm very busy this month.
今月の家賃を払った。
I paid this month's rent.
Compound of 今 (こん, 'this') and 月 (げつ, 'month'). The reading こんげつ is a straightforward combination of the on'yomi of the two kanji.