cyanocobalamin

two persons / a couple, pair / (poetic) the two of us, we two

a foreigner, a person from a foreign country; an alien, a foreign national / a person who is not Japanese

A provisional accounting auditor appointed by the Board of Auditors if the accounting auditor of a joint-stock company is deficient due to resignation, death, disqualification, etc. The term of office is until the next general meeting of shareholders.

simple / alone / single

mutual, together, each other / used in official or epistolary writings for elegance or politeness

mutual, together, each other, meeting

Short for 合い服 (あいふく, aifuku, “clothing worn in spring or autumn”).

hail (precipitated ice) / ice (frozen water)

one, 1