The angry men shook their fists in a gesture of defiance. Prisoners are being paraded in defiance of all international conventions. In defiance of her parents' curfew, she came home later than usual.
the hand gesture is a torch.
If you mean opposite it is compliance
Putting up your middle finger is a rude gesture commonly understood as an expression of anger, contempt, or defiance towards someone. It can be considered impolite or offensive in many cultures.
The gesture "OK" mean that you will have a good day and other thoughtful things in Hispanic countries.
A middle finger gesture is commonly seen as a rude or vulgar expression conveying anger, defiance, or contempt towards someone. It symbolizes disrespect and is considered offensive in many cultures and settings.
Mean a depressed man
It means "gesture".
mimi moemoe
It is an inappropriate gesture.
A gesture or word of welcome or salutation.
If you mean a gesture/action/sound to convey information then, Message, gesture or warning