once (in the indeterminate past)

the past, old times / ancient

olden days; former

a journey; travel / (archaic) a temporary time spent in a place

trip / travel

in ancient China, a military unit of 500 soldiers / one of the I Ching hexagrams: sojourning (I Ching hexagram interpretation on Wikipedia here)

a trip, a journey, travel

to travel, to go on a journey or trip

Short for 日本国 (Nihon-koku): Japan (a country and archipelago in East Asia) / a surname

Japan