__ Aids; Water Safety Flotation Devices
This page is the CodyCross answer for the clue below from Top Secret, Group 2083, Puzzle 4 (Spy Thriller).
Question is: __ Aids; Water Safety Flotation Devices
and the answer is: BUOYANCY
Word Meaning:
BUOYANCY — (physics) The upward force on a body immersed or partly immersed in a fluid.
Definitions from Wiktionary.