Minimum number of times each letter of the alphabet appears in this puzzle's solution

Question:

Answer:

FOUR

Length:

Similar Crossword Questions:

Number of times the letter 'U' appears in each of this puzzle's eight longest answers
Number of times this puzzle's theme word appears diagonally in the grid (to complete the puzzle, shade those words plus the Down answers that begin where they meet)
Like the letter E in this entire puzzle's solution
Puzzle theme which appears nine more times in the grid
Word form made with the big letter depicted in this puzzle's diagram (this letter is entirely absent from the solution)
It appears several times in this puzzle, so fill'er up!
___ accent, mark used symmetrically six times in this puzzle's solution
Letter that appears 28 times in this grid
Lowercase letter illustrated six times in this puzzle?
Kid's art activity ... or something seen four times in this puzzle's solution?
Letter that appears at least once in every single answer in this puzzle
Mark that appears four times in this puzzle (hint: the baseball player who's the answer to this puzzle uses one, too)
Number of one-voweled, seven-letter words in this puzzle
Platform ... or something that appears four times in this puzzle?
Resembling the 12th letter of the alphabet
Perjure oneself ... or what can be found six times in this puzzle
NATO alphabet letter between Alfa and Charlie
First letter in the last third of the Greek alphabet
Word that appears eight times on a dollar bill
23rd letter of the Hebrew alphabet
Third letter of the Greek alphabet
Simple code that uses a half-alphabet shift and that's the key to this puzzle's theme
18th letter of the Greek alphabet
Alphabet soup letter, e.g.
Cyrillic alphabet letter