Focus on the pronunciation of tool
English definition of “tool”
/tul/ n [C]
› a piece of equipment that you use to help you do a job, esp. something that you use with your hands to make or repair something: The only tools you need for this job are a hammer and a screwdriver. › A tool is also anything that helps you to do something you want to do: We believe the new law will be an effective tool in fighting poverty.