Of a job, beginning at 9 a.m. and ending at 5 p.m., the usual office hours in many countries.

(informal) To work a typical job beginning at 9 a.m. and ending at 5 p.m.

(In both the 12-hour clock and the 24-hour clock) The start of the tenth hour of the day; 9:00 a.m. (09:00).

9000

simple past tense and past participle of sixty-nine

Third-person singular simple present indicative form of sixty-nine

(Scrabble) A word that covers two triple-word squares, so that the overall value of the letters is multiplied by nine.

plural of nine-timer

A form of pool in which players must hit with the cue ball the object ball with the lowest numerical value, but may legally pot any ball apart from the white; whichever player pots the nine ball wins the game.

(literally) Nine parts out of ten; 90%; 9/10. / (loosely) Almost all; the vast majority.