as in night
the time from sunset to sunrise when there is no visible sunlight
before electricity, gas lamps were used for illumination during the nighttime
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of nighttime
Janet Loehrke, USA Today, 6 May 2026
Mention any daytime symptoms, such as excessive sleepiness or headaches, and any nighttime symptoms, such as frequent urination, waking up short of breath, snoring or insomnia.
—Erika Yamazaki, The Conversation, 6 May 2026
Janet Loehrke, USA Today, 6 May 2026
Your insulin sensitivity is worse at nighttime.
—Sohaib Imtiaz, Verywell Health, 4 May 2026
See All Example Sentences for nighttime
Adjective
Built from a decade of daily NASA satellite imagery, the image below compares 2012 with 2023 and highlights shifts in human nighttime activity.
—Janet Loehrke, USA Today, 6 May 2026
Mention any daytime symptoms, such as excessive sleepiness or headaches, and any nighttime symptoms, such as frequent urination, waking up short of breath, snoring or insomnia.
—Erika Yamazaki, The Conversation, 6 May 2026
Noun
According to a new study that analyzed a combination of satellite images, artificial nighttime lights have brightened Earth by 16% between 2014 and 2022.
—Janet Loehrke, USA Today, 6 May 2026
Your insulin sensitivity is worse at nighttime.
—Sohaib Imtiaz, Verywell Health, 4 May 2026
See All Example Sentences for nighttime
Recent Examples of Synonyms for nighttime
Adjective
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Many birds migrate at night using dark-sky cues, and nocturnal mammals rely on natural moonlight and starlight to survive.—
Hanna Wickes,
Kansas City Star,
12 May 2026
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Against the backdrop of a rainy, nocturnal London, O’Shaughnessy reprises his role as photographer Miles who obsessively captures unforgiving, morbid portraits of unaware strangers.—
Melanie Goodfellow,
Deadline,
11 May 2026
Noun
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James Ward Thursday night’s California governor debate underscored just how unsettled — and contentious — the race has become, with candidates repeatedly clashing over crime, election integrity, reproductive rights, and the balance of power between state and local government.—
James Ward,
USA Today,
15 May 2026
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All eyes were on the Total Nonstop Action Wrestling (TNA) X Division Championship on Thursday night as Leon Slater looked to retain the title over Cedric Alexander and solidify himself as the longest-reigning X Division champion in the company’s history.—
Ryan Gaydos,
FOXNews.com,
15 May 2026
Cite this Entry
“Nighttime.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nighttime. Accessed 19 May. 2026.
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