You searched for: “escalation
escalation (s) (noun), escalations (pl)
That which is increased in extent, intensity, or magnitude: An escalation of prices was caused by the worker's demand for higher wages.

Inflation and other factors caused an escalation in building costs.

In the context of a trade war, escalation refers to an increase in tariffs that occurs when countries retaliate against each other again and again.

Word Entries containing the term: “escalation
de-escalation, deescalation (s) (noun); de-escalations, deescalations
A decrease in strength, force, or size: The de-escalation of tension between the two countries was exceedingly welcome by the politicians and by the people of both countries!