What words refer to complaining?

complain, beef, blame, fuss, grouch, grouse, growl, murmur, mutter, object, protest, squawk, wail, yap, make a complaint, lodge a complaint, file a complaint, take it up with, take the matter up with, make a fuss, kick up a fuss, air your grievances, yammer,

What words refer to someone who complains?

complainer, fusspot, grumbler, misery, nag (n),

What words refer to something someone says when complaining?

complaint, complaining, grumbling, protest, whining,

What words describe something someone says when complaining?

plaintive, whiny