godan verb (-u), intransitive verb
nest; build a nest
Used for birds, insects, or other small animals making a nest in a particular place. Often implies settling in an unwanted location.
ツバメが軒下に巣くっている。
Swallows are nesting under the eaves.
屋根裏にネズミが巣くっていた。
Rats had nested in the attic.
godan verb (-u), intransitive verb
hang out (of a bad group); be based (in); haunt
Describes a group of people with bad intentions, such as criminals or troublemakers, establishing a base or frequently gathering in a place. Carries a negative connotation.
この地域には暴力団が巣くっている。
A crime syndicate is based in this area.
廃墟に不良たちが巣くっていた。
Delinquents were hanging out in the abandoned building.
godan verb (-u), intransitive verb
lodge (in one's mind); be planted; lurk (in one's heart)
Used for negative thoughts, delusions, or evil intentions that take root in a person's mind. Often appears in literary or psychological contexts.
心に疑念が巣くっている。
Doubt has lodged in my heart.
彼の頭の中には妄想が巣くっていた。
Delusions had taken root in his mind.