Meanings

large ditch

provincial military governor turned daimyo (Muromachi period) (distinct from the shugo bureaucrats of the Kamakura period)

major tsunami warning

university library

very important person

the four great civilizations of the world (China, Babylon, India, and Egypt; as put forward by Chinese scholar Liang Qichao in 1900)

glorious achievement

university lecturer

marble statue

big talk

best friend

main door at the front of a house

someone who is greatly one's senior

large hospital

large encyclopedia

major banks

upstage center (in a noh play)

sorry to trouble you, but ...

completely satisfied

macromolecule