There is a total of 27405 clues beginning with fi
- First of a maritime trio
- First of a memorable series
- First of a much-quoted trio
- First of a noted trio
- First of a pair of letters swapped six times in this puzzle's theme entries
- First of a pair of lists
- First of a planned 26-book mystery series
- First of a railway trio
- First of a Roman month
- First of a Roman trio
- First of a series
- First of a series of 24
- First of a series of sci-fi movies starring Sigourney Weaver
- First of a set
- First of a string of 13
- First of a string of 13 popes
- First of a succession of 13
- First of a traveling threesome
- First of a trilogy
- First of a trilogy, maybe
- First of a trilogy?
- First of a trio from the Litany
- First of a vowel fivesome?
- First of all
- First of all of us
- First of all?
- First of an active trio
- First of an alley's 10
- First of an ancient trio
- First of an astrological dozen
- First of an old film septet
- First of August?
- First of billions
- First of Caesar's claims
- First of Caesar's trio
- First of China's "sage emperors"
- First of December?
- First of England's Stuart kings
- First of extra innings
- First of fifty
- First of five at the Globe Theatre
- First of five four-letter words in a Shakespeare title
- First of five poker hands
- First of five Ws
- First of four Chuck Noll championships
- First of four giant syllables
- First of four giant syllables?
- First of four Holy Roman emperors
- First of his kind
- First of HOMES
- First of its kind
- First of its kind: Abbr
- First of its kind?
- First of journalism's five W's
- First of Lincoln's four sons
- First of literature's "prairie trilogy"
- First of many body parts in "Alouette"
- First of men
- First of Mickey's wives
- First of multitudes
- First of one gender
- First of September?
- First of seven (so far)
- First of seven?
- First of several?
- First of six films that was later retitled Episode IV: A New Hope
- First of six popes
- First of six?
- First of spring?
- First of ten?
- First of the 26
- First of the 49-Across to hit 500 home runs
- First of the archangels
- First of the Astaire-Rogers films: 1933
- First of the Biblical high priests
- First of the cardinals
- First of the Cavalier poets
- First of the Chinese dynasties
- First of the eight planets, alphabetically
- First of the eighth century
- First of the five stages of grief
- First of the five W's
- First of the Frankish kings
- First of the Greeks
- First of the Greeks?
- First of the House of Lancaster
- First of the James Bond films
- First of the Jewish High Holy Days
- First of the Latter Prophets
- First of the Maj Prophets
- First of the major Hebrew prophets
- First of the Major Prophets
- First of the metalloids
- First of the Minor Prophets
- First of the month, in anc Rome
- First of the NT
- First of the new African republics
- First of the patriarchs
- First of the Pevensie children to visit Narnia