一one一日first of the monthもう一度again一度once一時moment一度にall at once一番best万一by some chance一応once一流first class一々one by one一概にunconditionally一見unfamiliar一言single word一日one day一定fixed一同all present一人one person一部one copy e.g. of a document一部分a part一別parting一面one side一目a glance一様uniformity一律evenness一連a series第一first
同 どう
共同cooperation同一identity同時simultaneous(ly)同様identical同僚coworker合同combination同格the same rank一同all present混同confusion同the same同意agreement同感agreement同級the same grade同居living together同士fellow同志same mind同情sympathy同調sympathy同等equality同封enclosure (e.g. in a letter)同盟alliance