English Vocabulary

zero hour (the time set for the start of a military attack or an important event) The zero hour for the attack was 1:00 AM local time. It’s almost zero hour for the wedding ceremony. I have to finish the report. I am at zero hour.   envocabulary.com

  since when  spoken (used in questions to show that you are very surprised, angry, or doubtful) Since when do you care what I think? Since when have you been interested in her feelings? envocabulary.com

  count someone out  informal (exclude someone from an activity or plan) I don’t like to stay out late at night, so you can count me out. Alex wants to come with us, and you shouldn’t count him out. envocabulary.com

count someone in  informal (include someone in an activity or plan) We’re going out drinking; want to come? Sure, count me in. If you’re having a party tonight, please count me in. envocabulary.com

sick at heart (very sad) He was sick at heart about being away from home. I was sick at heart when I saw the boy, half dead from hunger. envocabulary.com