1bomb 
/ˈbɑ:m/ noun
plural bombs /ˈbɑ:m/ noun 1 a [count] : a device that is designed to explode in order to injure or kill people or to damage or destroy property
▪ A bomb went off downtown. ▪ The bomb is set to detonate at 3:00. = The bomb will blow up at 3:00. ▪ Many bombs were dropped on the city during the war. ▪ They hid/planted a bomb in the building. ▪ a pipe bomb [=a bomb made from a piece of pipe] ▪ a suicide bomb [=a bomb carried by someone who plans to be killed by it when it explodes] — often used before another noun ▪ a bomb explosion/blast ▪ a bomb site [=a place where a bomb has exploded] ▪ Someone called in a bomb threat [=a message saying that a bomb is located in a particular place], so the building was evacuated. ▪ a bomb squad [=a group of people who have the job of preventing bombs from causing damage or injury]
b the bomb : nuclear weapons
▪ countries that have the bomb 2 [count] US, informal : something that is a complete failure — usually singular ▪ The movie was a bomb. [=flop] 3 a the bomb US slang : something or someone that is very good
▪ Their new album is the bomb. [=their new album is great]
b [singular] Brit, informal : something that is very successful
▪ The party went down/like a bomb [=the party was a success], and everybody enjoyed themselves. 4 [count] a American football : a long pass
▪ The quarterback threw a bomb to the wide receiver.
b basketball : a long shot
▪ She's good at shooting three-point bombs.
c baseball : a long home run
▪ He hit a three-run bomb over the left field wall. 5 [singular] Brit, informal : a large amount of money
▪ She paid a bomb for the car. ▪ I'm looking for a new computer that doesn't cost a bomb.
▪ A bomb went off downtown. ▪ The bomb is set to detonate at 3:00. = The bomb will blow up at 3:00. ▪ Many bombs were dropped on the city during the war. ▪ They hid/planted a bomb in the building. ▪ a pipe bomb [=a bomb made from a piece of pipe] ▪ a suicide bomb [=a bomb carried by someone who plans to be killed by it when it explodes] — often used before another noun ▪ a bomb explosion/blast ▪ a bomb site [=a place where a bomb has exploded] ▪ Someone called in a bomb threat [=a message saying that a bomb is located in a particular place], so the building was evacuated. ▪ a bomb squad [=a group of people who have the job of preventing bombs from causing damage or injury]
b the bomb : nuclear weapons
▪ countries that have the bomb
▪ Their new album is the bomb. [=their new album is great]
b [singular] Brit, informal : something that is very successful
▪ The party went down/like a bomb [=the party was a success], and everybody enjoyed themselves.
▪ The quarterback threw a bomb to the wide receiver.
b basketball : a long shot
▪ She's good at shooting three-point bombs.
c baseball : a long home run
▪ He hit a three-run bomb over the left field wall.
▪ She paid a bomb for the car. ▪ I'm looking for a new computer that doesn't cost a bomb.
drop a bomb or drop the bomb
informal : to do or say something that is very shocking and unexpected
▪ She dropped a bomb with her resignation. [=her resignation was a complete surprise] ▪ She dropped the bomb on her husband and asked for a divorce.
▪ She dropped a bomb with her resignation. [=her resignation was a complete surprise] ▪ She dropped the bomb on her husband and asked for a divorce.
