radar
Actually it is Detecting an Enemy Craft and Answer is RADAR
Kayak
Radar
"Aha" is a palindrome that can be used as a preposition.
Used for error detection
101 is the smallest palindrome.
Radar is an object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircrafts.
kayak
kayak
kayak
noon
kayak