Fill It With Air or Helium
This page is the CodyCross answer for the clue below from Wild West, Group 425, Puzzle 4 (Dime Novels).
Question is: Fill It With Air or Helium
and the answer is: BALLOON
Word Meaning:
BALLOON — An inflatable buoyant object, often (but not necessarily) round and flexible.
Definitions from Wiktionary.