deed
Level is a palindrome that is a synonym for horizontal
deed
deed
deed
A palindrome that is a synonym of "sudden noise" is "pop," as it reads the same forwards and backwards.
wow
shahs
toot
pop
Feat is not a verb. Feat is a noun, as in, "He has accomplished a great feat by winning a gold medal in the Olympics." A synonym of feat is achievement.
That would be a pip.
refer