NIGHTTIME

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does nighttime mean? 

• NIGHTTIME (noun)
  The noun NIGHTTIME has 1 sense:

1. the time after sunset and before sunrise while it is dark outside

  Familiarity information: NIGHTTIME used as a noun is very rare.

 Dictionary entry details 

• NIGHTTIME (noun)

Sense 1

Meaning:

The time after sunset and before sunrise while it is dark outside

Classified under:

Nouns denoting time and temporal relations

Synonyms:

dark; night; nighttime

Hypernyms ("nighttime" is a kind of...):

period; period of time; time period (an amount of time)

Meronyms (parts of "nighttime"):

evening (the early part of night (from dinner until bedtime) spent in a special way)

late-night hour (the latter part of night)

midnight (12 o'clock at night; the middle of the night)

small hours (the hours just after midnight)

lights-out (a prescribed bedtime)

Hyponyms (each of the following is a kind of "nighttime"):

weeknight (any night of the week except Saturday or Sunday)

wedding night (the night after the wedding when bride and groom sleep together)

Holonyms ("nighttime" is a part of...):

24-hour interval; day; mean solar day; solar day; twenty-four hour period; twenty-four hours (time for Earth to make a complete rotation on its axis)

 Context examples 

Thunderstorms that form during the day are less puzzling than nighttime storms.

(Scientists tackle mystery of thunderstorms that strike at night, NSF)

The problem is the sunscreen (titanium oxide) precipitation only happens on the planet's permanent nighttime side.

(Hubble Observes Exoplanet that Snows Sunscreen, NASA)

Parkinson's Disease Quality of Life Scale (PDQUALIF) In the past 7 days, my nighttime symptoms keep me from sleeping with my spouse/partner.

(PDQUALIF - Sleep with Partner in Past 7 Days, NCI Thesaurus)

But the planet's nighttime side is a different story.

(Hubble Captures Blistering Pitch-Black Planet, NASA)

Neuropsychiatric Inventory (NPI) Severity of the nighttime behavior.

(NPI - Sleep and Nighttime Behavior Disorders Severity, NCI Thesaurus)

Neuropsychiatric Inventory (NPI) Frequency of the nighttime behavior.

(NPI - Sleep and Nighttime Behavior Disorders Frequency, NCI Thesaurus)

Neuropsychiatric Inventory (NPI) Does the patient have any other nighttime behaviors that bother you that we haven't talked about?

(NPI - Any Other Nighttime Behaviors That Bother You, NCI Thesaurus)

A sleep disorder characterized by a tendency for excessive sleepiness during the day which occurs even after adequate sleep in the nighttime.

(Narcolepsy, NCI Thesaurus)

Results showed about a 58 percent increase in their nighttime melatonin levels, the chemical that signals your body that it is time to sleep.

(Artificial Light of Digital Devices Lessens Sleep Quality, The Titi Tudorancea Bulletin)

Overall, 79 countries, mostly in Asia, South America and Africa, experienced a growth in nighttime brightness.

(Study: Earth’s Night Skies Getting Brighter, VOA)