Reduction

noun the act or process of reducing or lessening something, such as a nuisance or a problem

• The government implemented an abatement plan to reduce pollution levels in the city.
• The city council is working on an abatement strategy to clean up the streets.
• We need to start an abatement project ASAP to fix this mess.
• His apology was like an abatement for the hurt he caused.

noun the act of shortening or condensing something

• The abridgment of the novel made it more accessible to readers with limited time.
• I found a great abridgment of that long book we have to read for class.
• I can't believe they made an abridgment of that movie, it's going to be so much shorter now.
• His refusal to compromise was an abridgment of their chances for success.