weekly

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adverb Once a week.
• adverb Every week.
• adverb By the week.
• adjective Of or relating to a week.
• adjective Occurring, appearing, or done once a week or every week.
• adjective Computed by the week.
• noun A publication issued once a week.

from The Century Dictionary.

• Once a week; at intervals of seven days: as, a paper published weekly; wages paid weekly.
• Of, pertaining to, or lasting for a week; reckoned by the week; produced or performed between one Sunday and the next: as, weekly work.
• Coming, happening, or done once a week: as, a weekly payment; a weekly paper; a weekly allowance; the -weekly sailings of steamers; a weekly mail.
• noun A periodical, as a newspaper, appearing once a week.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to a week, or week days.
• adjective Coming, happening, or done once a week; hebdomadary
• noun A publication issued once in seven days, or appearing once a week.
• adverb Once a week; by hebdomadal periods.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adverb Once every week.
• adverb Every week.
• adjective Of or relating to a week.
• adjective Happening once a week, or every week.
• noun A publication that is published once a week.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adverb without missing a week
• adjective of or occurring every seven days
• noun a periodical that is published every week (or 52 issues per year)