This Is the First Number to Have the Letter "a"
This page is the CodyCross answer for the clue below from Comics, Group 1075, Puzzle 5 (Save From Danger).
Question is: This Is the First Number to Have the Letter "a"
and the answer is: THOUSAND
Word Meaning:
THOUSAND — A numerical value equal to 1,000 = 10 × 100 = 10³ (1 E+3 exactly—in scientific E notation.)
Definitions from Wiktionary.