Biweekly :
dyjavor
Synonyms :
Fortnightly, Semiweekly
English Meaning :
(Noun : A periodical that is published twice a week or every two weeks (either 104 or 26 issues per year)
(Adjective : Occurring every two weeks)
(Adverb : Twice a week)
(Noun : A periodical that is published twice a week or every two weeks (either 104 or 26 issues per year)
(Adjective : Occurring every two weeks)
(Adverb : Twice a week)
Example : Until completion, the organisation will be given biweekly progress reports.
Until completion, the organisation will be given biweekly progress reports.
Fortnight :
dyjavor
English Meaning :
(Noun : A period of fourteen consecutive days)
(Noun : A period of fourteen consecutive days)
Example : Nobody would think of organising a social event or fundraiser in the holiday fortnight .
Nobody would think of organising a social event or fundraiser in the holiday fortnight .
Word Example from TV Shows :

they'll arrive at Winterfell
within the FORTNIGHT.
Game of Thrones Season 7, Episode 7

they'll arrive at Winterfell
within the FORTNIGHT.
Game of Thrones Season 7, Episode 7
Fortnightly :
dyjavor
Synonyms :
Biweekly, Biweekly
English Meaning :
(Adjective : )
(Adverb : )
(Noun : )
(Adjective : )
(Adverb : )
(Noun : )
Example : There are also frequent replacement lenses, which could be changed daily, weekly, or fortnightly .
There are also frequent replacement lenses, which could be changed daily, weekly, or fortnightly .