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1. To not put something away in its rightful place. A noun or pronoun can be used between "leave" and "out." Don't leave your dirty clothes out in the middle of the living room! Aw man, I accidentally left out the ice cream—now it's all melted.
2. To withhold or omit something. A noun or pronoun can be used between "leave" and "out." I did talk to mom, I just left out the part about getting detention.
3. To be ignored, forgotten, or excluded, as from a group, activity, benefit, etc. In this usage, the phrase is usually used in the past tense ("left out"). Of course I felt left out when you guys went to the concert without me!
Omit, fail to include, as in This sentence doesn't make sense; a key word has been left out. [Late 1400s]
leave it outstop it. British informal
ˌleave it ˈout(British English, spoken) used to tell somebody to stop doing something: Leave it out, will you? I’m trying to study!
1. To allow something or someone to remain outdoors: I left the dog out last night.
2. To allow something to remain in plain sight: Who left the dirty dishes out on the kitchen counter?
3. To fail to include or mention something; omit something: We weren't sure if the facts were correct, so we left that section out of the report. You've left out the decimal point on this price tag.