the summer vacation; summer break

(colloquial) huge, big, severe, intense

(slang) a detective, a plainclothes police officer or constable

deca-

the maple family, Aceraceae

a family, a household

adverbial form of よい (yoi, “good”) / adverbial form of いい (ii, “good”) / 良く, 善く, 克く: good, well / 良く: frequently, often / 良く, 善く: having astonishing ability or guts / 能く: (literary) able to

浴室: bathroom

well done; good job

(emphatic) Alternative form of よく (yoku)