all day, throughout the day, sunrise to sunset, all around the clock

(linguistic morphology) an infix

Kyūjitai form of 中国学: Sinology

arduous is the race against time as one grows old. (literally "as the sun goes down, the road remains a long one.")

a Romanization method of Japanese, combining the 標準式 (hyōjun-shiki) and 日本式 (Nihon-shiki) styles, that was adopted in 1937 by Cabinet order and slightly modified in 1954

(music) rock 'n' roll

one-hundred fires and one-hundred hits: making the mark every time

(anatomy) a middle scalene muscle

(anatomy) a middle pharyngeal constrictor

(obsolete) round the clock / (obsolete) all the time