A price increase refers to a situation where the cost of goods or services rises. There are various synonyms that can be used to describe this phenomenon. One of the most common is "price hike", which suggests a sudden and significant increase in cost. Another synonym is "cost escalation", indicating a gradual rise in prices over time. "Inflation" is also used to refer to a general increase in prices across an economy, while "surcharge" implies an additional cost added to an existing price. "Mark-up" indicates an increase in the price of goods or services due to added profit margin or expenses. Ultimately, whatever the term used, a price increase can have a significant impact on individuals and the wider economy.