(product development) project

one month (duration)

cycle (frequency) / cycle (a repetition) / cycle (engine stroke) / bicycle

project (planned endeavour)

counter for months, used to express a period of time numbered in months

project management

one day

one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

二箇月: two months (duration)

三箇月: three months (duration)