Reading Theme:
Nocturnal Meaning: Active at Night – Examples & Usage (2 meaning)
Meaning 1：active at night (nocturnal)
nocturnal
/nɒkˈtɜːnəl/
adj.
Active at night, especially used to describe animals.
active at night
➕
/ˈæktɪv æt naɪt/
adj.
Describes organisms that are primarily active during the night, resting or sleeping during the day. This behavior is common in many animals for thermoregulation, hunting, or avoiding predators.
📘 Details & Usage
📖 Root Explanation
From Latin 'nocturnus' (of the night), derived from 'nox' (night).
💡 Mnemonic
Nocturnal = 'knock turn' at night: imagine a cat knocking over a vase while turning around at midnight.
📖 Example
Since cats are nocturnal, their eyes often glow in the dark when they're hunting for mice.
Since cats are nocturnal, their eyes often glow in the dark when they're hunting for mice.
🔗 Collocations
nocturnal animals – animals that are active at night
nocturnal habits – behaviors or routines that occur at night
nocturnal predator – a predator that hunts primarily during the night
🔄 Synonyms
nighttime (adj.) – relating to or occurring during the night
crepuscular (adj.) – active during twilight (dawn or dusk), often confused with nocturnal
night-loving (adj.) – having a preference for or thriving in the night
🚫 Antonyms
🌱 Derivatives
nocturnally (adv.) – in a manner that is active or occurring at night
nocturnality (n.) – the quality or state of being nocturnal
nocturne (n.) – a musical composition or painting inspired by the night
📖 Cultural Story
Entered English via Old French 'nocturnal' in the 15th century, originally used in astrology and later in biology to describe night-active creatures. Its Latin root 'nox' also gave rise to 'nocturne' and 'equinox'.
Meaning 2：happening at night (nocturnal)
nocturnal
/nɒkˈtɜːnəl/
adj.
Happening or done during the night.
happening at night
➕
/ˈhæpənɪŋ æt naɪt/
adj.
Refers to events, activities, or phenomena that occur during the night, often associated with vibrant city life, late-night business hours, or cultural events.
📘 Details & Usage
📖 Example
The city has a vibrant nocturnal life, with many cafes and bars staying open past midnight.
The city has a vibrant nocturnal life, with many cafes and bars staying open past midnight.
🔗 Collocations
nocturnal activities – events or actions that take place at night
nocturnal hours – the period of time during the night, especially late at night
nocturnal entertainment – forms of amusement or leisure that are available at night
🔄 Synonyms
nighttime (adj.) – occurring during the night
nightly (adj.) – happening every night
after-dark (adj.) – happening after nightfall
🚫 Antonyms
🌱 Derivatives
nocturnally (adv.) – in a manner that takes place at night
nocturne (n.) – a piece of music or art depicting the night
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