3 o'clock; afternoon snack (eaten around 3 o'clock); three ages of Buddhism (following the death of Gautama Buddha; age of the true law, age of the copied law, and age of the degeneration of the law); three ages of the dharma
three flat objects (sheets of paper, pieces of cloth, etc.)
three times (as much); treble; triple; threefold
three times; thrice; third (musical interval)
set of three; three sets; three classes
three parts; three copies
third year of junior high school; third-year junior high school student
three dimensions; three dimensional; 3D; real world; IRL (in real life)
third year of high school; third-year high-school student
third year (college) student; junior
three-day weekend; long weekend; three holidays in a row
third year of elementary school; third year elementary school student
three-second rule (food hygiene myth); three seconds rule (basketball)
after-afterparty; third party of the night
full signal strength (on a cellphone); good cellphone reception; (lit.) three bars
being highly educated, having a high salary and being tall; (lit.) three highs; high-valued yen, high stock prices and high land prices (usu. in reference to the Bubble Era)
Unit 731 (biological warfare unit of the Japanese Imperial Army)
three Cs; three conditions that facilitate the transmission of infectious diseases (closed spaces, crowds, and close contact); three mysteries (Buddha's body, speech and mind)
sweet bread with three different fillings
recruit (former rank in the JSDF)
being thrice divorced; three-time divorcee; three x marks (i.e. three names struck from the family register)
being thrice divorced; three-time divorcee; three x marks (i.e. three names struck from the family register)
(child in the) terrifying threes