NIGHT AND DAY Synonyms: 49 Similar and Opposite Words

night and day

adverb

Definition of night and day

as in constantly

on every relevant occasion night and day she reminded him that if it weren't for her, he'd be a nobody

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of night and day For Morgan, the difference from her playing days is night and day. — Terry Baddoo, USA Today, 14 June 2026 Tasting the 2021 vintage side by side recalls Zaccheo’s comment about wines that are like night and day. — Mike Desimone, Robb Report, 3 May 2026 The difference in snow levels is night and day, with last year’s white peaks replaced by browns and greens. — Terry Castleman, Los Angeles Times, 16 Apr. 2026 The growth that Ratledge showed between the first half of his rookie season and the second half is night and day. — Colton Pouncy, New York Times, 7 Apr. 2026 See All Example Sentences for night and day

Recent Examples of Synonyms for night and day

Adverb

Living with endometriosis means becoming an expert on highly specialized ingredients and constantly cross-checking product labels.

— Bella Webb, Vogue, 28 Aug. 2026
This is because the material that serves as the building blocks for planets is constantly escaping the swirling platters of gas and dust, or protoplanetary disks, that wrap around infant stars.

— Robert Lea, Space.com, 27 Aug. 2026

Definition of constantly

Adverb

Top Gear has not been on air since 2022, but a return was always likely, given the BBC Studios franchise is too big to leave in the garage.

— Jake Kanter, Deadline, 27 Aug. 2026
Winter Park High School athletic director Charlie Battaglini said the city of Winter Park, with a proud link to its schools, has always played a big role in the Wildcats’ record-setting stack of state all-sports championships.

— Buddy Collings, The Orlando Sentinel, 26 Aug. 2026

Definition of always

Adverb

When government applies the rules consistently, businesses have the confidence to invest, innovation is encouraged, public institutions earn greater trust and the public benefits.

— Robin Rossenfeld, Denver Post, 28 Aug. 2026
The person who fills gaps consistently becomes indispensable to the people around them.

— Stacy L. Hambleton, Fortune, 28 Aug. 2026

Definition of consistently

Browse Nearby Words

night

night and day

nightcap

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Style

“Night and day.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/night%20and%20day. Accessed 30 Aug. 2026.

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Synonyms of night and day

adverb

Example Sentences

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