Meanings

the four great Japanese grammar texts (Yamada, Matsushita, Hashimoto and Tokieda)

Fourth World

four-wheeled light vehicle

four-wheeled light vehicle

harsh words make the going rough

the Four Freedoms (as defined by Franklin D. Roosevelt: freedom of speech, freedom of worship, freedom from want, freedom from fear)

720ml bottle (of alcohol)

tetrasaccharide

one metropolis (Tokyo), one "circuit" (Hokkaido), two urban prefectures (Osaka and Kyoto) and 43 prefectures proper

perfect fourth

Chūgoku and Shikoku

satipatthana

grappling firmly

four ordinal directions

4D pocket

four kinds of birth in the six destinies

the four ways of birth (from a womb, an egg, moisture or spontaneously)

four-of-a-kind and a pair in a dealt hand

the four loves (chrysanthemum, lotus, plum, and orchid; as painting subjects)

four-of-a-kind (in a dealt hand)