草々

そうそう

brevity, rudeness, hurry

日々

ひび にちにち

every day, daily, day after day, days (e.g. good old days)

お草々

おそうそう

neglectful (i.e. in the treatment of one's guests)

翌々日

よくよくじつ

two days later, next day but one

前々日

two days before; day before yesterday

百日草

ひゃくにちそう

zinnia

日輪草

にちりんそう

sunflower (Helianthus annuus)

千日草

せんにちそう

globe amaranth

草々不一

そうそうふいつ

Sincerely yours (with the nuance of "please excuse the brevity of this letter")

お草々様

おそうそうさま

neglectful (i.e. in the treatment of one's guests)

日々是好日

にちにちこれこうじつ

every day is a good day; enjoy every day

春日遅々

しゅんじつちち

spring day being long and balmy, serene spring day

明々後日

あきら々ごじつ

in three days' time; two days after tomorrow

日々の糧

ひびのかて

one's daily bread

日々公表銘柄

ひびこーひょーめーがら

stocks announced daily

古き良き日々

ふるきよきにちにち

the good old days, halcyon days

日本草地学会

にっぽんくさじがっかい

Japanese Society of Grassland Science

々

のま くりかえし

repetition of kanji (sometimes voiced)

日々に新たなり

ひびにあらたなり

Keep improving day by day