night and day
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night and day
1. All the time; continuously. I've been studying night and day to get ready for this test.
2. Describing a contrast between two completely different things, often one that has resulted in improvement. Often preceded by "like." Her transformation has really been night and day. She doesn't even look like the same person. A: "Have you seen any improvement in his behavior?" B: "Oh, it's like night and day. He's been a model student this month."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
night and day
Also day and night. Continually, without stopping. This phrase is used either literally, as in The alarm is on night and day, or hyperbolically, as in We were working day and night on these drawings. Shakespeare put it by night and day in The Comedy of Errors (4:2): "Time comes stealing on by night and day."
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
night and day
all the time; constantly.Farlex Partner Idioms Dictionary © Farlex 2017
ˌnight and ˈday
,ˌday and ˈnight
all the time; without stopping: She worked night and day on the report until it was finished.Farlex Partner Idioms Dictionary © Farlex 2017
- day and night
- slog away
- all night long
- rivet (one's) eyes on (someone or something)
- rivet (one's) glare on (someone or something)
- put one foot in front of the other
- be banging (one's) head against a brick wall
- be banging your head against a brick wall
- be banging, etc. your head against a brick wall
- be hitting (one's) head against a (brick) wall