IPA: /nɒkˈtɜːrnəl/
KK: /nɑkˈtɜrnəl/
Relating to or active during the night.
Owls are nocturnal creatures that hunt for food after dark.
Nocturnal → It is formed from "noctis" (meaning night) and the suffix "-al" (meaning relating to). The word "nocturnal" refers to things that are related to or active during the night.
Think of 'night' ('noctis') to remember that 'nocturnal' describes creatures or activities that happen at night.