Find Out for Certain, Establish Something Is True
This page is the CodyCross answer for the clue below from Airport, Group 453, Puzzle 3 (Saying Goodbye).
Question is: Find Out for Certain, Establish Something Is True
and the answer is: ASCERTAIN
Word Meaning:
ASCERTAIN — (transitive) To find out definitely; to discover or establish.
Definitions from Wiktionary.