前年同月比

ぜんねんどうげつひ

compared to the same month the previous year (e.g. in statistics, sales, electricity usage)

前月

ぜんげつ

last month, previous month

前期比

ぜんきひ

compared to previous period, quarter-to-quarter basis, from the previous quarter

前年比

ぜんねんひ

year on year, on the previous year

月経前

げっけいまえ

premenstrual

対前年比

たいぜんねんひ

relative change from last year

前年同月

ぜんねんどうげつ

same period of last year, the same month a year ago, year-ago month

月経前緊張症

げっけいぜんきんちょうしょう

premenstrual tension

月経前症候群

げっけいぜんしょうこうぐん

Premenstrual Syndrome (PMS)

比

ひ

ratio, proportion

月

がつ げつ つき

moon

前

まえ ぜん

the last (i.e. immediately preceding) (e.g. "the last mayor"), previous, one-time, former

正比

せいひ

direct ratio

阿比

あび アビ おもねひ

red-throated loon (Gavia stellata)

単比

たんぴ たんひ

simple ratio

性比

せいひ

sex ratio

櫛比

しっぴ

lining up, packing tightly

反比

はんぴ ぎゃくひ

inverse ratio

公比

こうひ

common ratio