The document defines and provides examples for common English idioms and expressions including: 1) Achilles heel refers to a vulnerable area or weakness. All ears means listening attentively. Against the clock means having little time. 2) All hands on deck means needing everyone's help. All in your head means something is imaginary. All along means for an extended period of time. 3) All that jazz is similar to saying "all that stuff" or other similar things. Have an ace up your sleeve means having something in reserve as an advantage. Accidentally on purpose means intentionally doing something but pretending it was an accident. Hold all the aces means being in a very strong position with more advantages than others.