甲乙丙丁

こうおつへいてい

A, B, C and D, first, second, third and fourth

甲乙

こうおつ

A and B, excellent and good, similarity

甲と乙

こうとおつ かぶとときのと

the former and the latter, A and B

甲論乙駁

こうろんおつばく

arguments pro and con

丙

へい ひのえ

third in rank, third sign of the Chinese calendar

丙戌

ひのえいぬ へいじゅつ

twenty-third of the sexagenary cycle

丙子

ひのえね へいし

thirteenth of the sexagenary cycle

丙申

ひのえさる へいしん

thirty-third of the sexagenary cycle

丙寅

ひのえとら へいいん

third of the sexagenary cycle

丙午

ひのえうま へいご

43rd year of the sexagenary cycle (year of the Fire Horse, renowned for disasters and the birth of women destined to kill their husbands)

丙辰

ひのえたつ へいしん

53rd of the sexagenary cycle

丙種

へいしゅ ひのえしゅ

C-grade, third-class

丙夜

へいや

third division of the night (approx. 11 pm to 1 am)

甲乙付け難い

こうおつつけがたい

it is difficult to say which of the two is better

乙

おつ きのと

second in rank, second sign of the Chinese calendar

甲の薬は乙の毒

こうのくすりはおつのどく

one man's meat is another man's poison, one man's medicine is another man's poison

甲乙つけがたい

こうおつつけがたい

difficult to say which of the two is better; hard to tell which is better; (there is) little to choose between them

乙亥

きのとい いつがい おつがい

twelfth of the sexagenary cycle

乙酉

きのととり いつゆう おつゆう

twenty-second of the sexagenary cycle