1dou·ble 
/ˈdʌbəl/ adjective
/ˈdʌbəl/ adjective 1 : made of two parts that are similar or exactly the same
▪ One of the eggs had a double yolk. ▪ The truck crossed the double yellow line and entered the other lane. ▪ My name is “Allison,” with a double “l.” ▪ The band is releasing a double album [=a set of two records, CDs, etc.] later this year. ▪ Go through those double doors and walk to the end of the hall. ▪ He was convicted of a double murder. [=of killing two people at the same time] 2 : having two very different parts or qualities
▪ He served a double [=dual] role as both king and servant to his people. ▪ His statement has a double meaning. [=it means two different things] ▪ In this film, he does double duty [=performs two roles] as both actor and director. ◊If you are leading/living a double life, you have something secret that you do as an important part of your life in addition to the regular parts of your life that other people know about.
▪ She was a newspaper reporter who led/lived a double life as a spy. 3 a : of a size that is twice as big as usual : of an amount that is twice as much as usual
▪ I'll have a double espresso, please. ▪ two double martinis ▪ a double dose of medicine ▪ Line the pan with a double thickness [=two layers] of foil. ▪ a double order of fries
b : coming from two different places or sources
▪ families with a double income [=two incomes] 4 : two times as great or as many as the number, amount, size, etc., of something else
▪ The college had double [=twice] the number of expected applicants. ▪ Our new car was double the price of our last one. ▪ The CEO's salary is nearly double that of the president. 5 : made for two people to use
▪ We'll need a double room. ▪ a room with a double bed 6 of a flower : having more than the usual number of petals
▪ double flowers/blooms
▪ One of the eggs had a double yolk. ▪ The truck crossed the double yellow line and entered the other lane. ▪ My name is “Allison,” with a double “l.” ▪ The band is releasing a double album [=a set of two records, CDs, etc.] later this year. ▪ Go through those double doors and walk to the end of the hall. ▪ He was convicted of a double murder. [=of killing two people at the same time]
▪ He served a double [=dual] role as both king and servant to his people. ▪ His statement has a double meaning. [=it means two different things] ▪ In this film, he does double duty [=performs two roles] as both actor and director. ◊If you are leading/living a double life, you have something secret that you do as an important part of your life in addition to the regular parts of your life that other people know about.
▪ She was a newspaper reporter who led/lived a double life as a spy.
▪ I'll have a double espresso, please. ▪ two double martinis ▪ a double dose of medicine ▪ Line the pan with a double thickness [=two layers] of foil. ▪ a double order of fries
b : coming from two different places or sources
▪ families with a double income [=two incomes]
▪ The college had double [=twice] the number of expected applicants. ▪ Our new car was double the price of our last one. ▪ The CEO's salary is nearly double that of the president.
▪ We'll need a double room. ▪ a room with a double bed
▪ double flowers/blooms
