Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Adjective: day-by-day  'dey,bI'dey
  1. Of or belonging to or occurring every day
    "day-by-day routine";
    - daily, day-to-day, day-after-day
Adverb: day by day
  1. Gradually or progressively over successive days
    "his health weakened day by day";
    - daily, by the day

See also: periodic, periodical

Encyclopedia: Day by day