fortnightly

• POS: Adjective, Noun, Adverb
• HYPHEN: fort=night=ly

CIDE DICTIONARY

fortnightly, a. 

 Occurring or appearing once in a fortnight; as, a fortnightly meeting of a club; a fortnightly magazine, or other publication.  [1913 Webster]

OXFORD DICTIONARY

fortnightly, adj., adv., & n.
--adj. done, produced, or occurring once a fortnight.
--adv. every fortnight.
--n. (pl. -ies) a magazine etc. issued every fortnight.

THESAURUS

fortnightly

annual, biannual, biennial, bimonthly, biweekly, catamenial, centenary, centennial, daily, daybook, decennial, diary, diurnal, ephemeris, gazette, hebdomadal, hourly, journal, magazine, menstrual, momentary, momently, monthly, newsmagazine, organ, periodical, pictorial, quarterly, quotidian, review, secular, semestral, semiannual, semimonthly, semiweekly, semiyearly, serial, slick magazine, tertian, trade magazine, triennial, weekly, yearbook, yearly

ROGET THESAURUS

fortnightly

Periodicity

N regularity of recurrence, periodicity, intermittence, beat, oscillation, pulse, pulsation, rhythm, alternation, alternateness, alternativeness, alternity, bout, round, revolution, rotation, turn, say, anniversary, jubilee, centenary, catamenia, courses, menses, menstrual flux, rota, cycle, period, stated time, routine, days of the week, Sunday, Monday, months of the year, January, feast, fast, Christmas, Easter, New Year's day, Allhallows, Allhallowmas, All Saints' Day, All Souls', All Souls' Day, Ash Wednesday, bicentennial, birthday, bissextile, Candlemas, Dewali, groundhog day, Halloween, Hallowmas, Lady day, leap year, Midsummer day, Muharram, woodchuck day, St. Swithin's day, natal day, yearbook, yuletide, punctuality, regularity, steadiness, periodic, periodical, serial, recurrent, cyclical, rhythmical, recurring, intermittent, remittent, alternate, every other, hourly, diurnal, daily, quotidian, tertian, weekly, hebdomadal, hebdomadary, biweekly, fortnightly, bimonthly, catamenial, monthly, menstrual, yearly, annual, biennial, triennial, centennial, secular, paschal, lenten, regular, steady, punctual, regular as clockwork, periodically, at regular intervals, at stated times, at fixed established, at established periods, punctually, de die in diem, from day to day, day by day, by turns, in turn, in rotation, alternately, every other day, off and on, ride and tie, round and round.