A war of words
Definition 1 of 1
Pro Tip 1/3Figurative Use
This phrase is metaphorical; it does not involve physical fighting, but intense argument or criticism. 
The debate between the politicians was nothing less than a war of words.
Pro Tip 2/3Media Coverage
Often used when media outlets cover disputes, emphasizing the drama in public disagreements. 
The scandal prompted a war of words in the tabloids.
Pro Tip 3/3Non-Violent
Despite the term 'war,' the phrase implies non-physical confrontation, centered on words. 
The negotiation became a war of words as both sides defended their positions.